How to configure sound in the engineering menu on Android. Volume control on Android: standard settings, engineering menu and applications

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Often in Chinese (and probably not only Chinese) phones, the settings in the engineering menu are far from optimal settings volume of the speaker, headset (headphones) and microphone, their correction will be discussed in this article.

How to get to the engineering menu of an Android phone

To get to the engineering menu, open the dialer and enter special code: *#*#3646633#*#*

Also on some versions of Android the command may work *#15963#* and *#*#4636#*#*

If your phone's processor is not MTK, then it is possible different variants.

I will give the codes known to me for opening the engineering menu on different phones and tablets:

*#*#54298#*#* or *#*#3646633#*#* – smartphones based on MTK processor

*#*#8255#*#* or *#*#4636#*#* –Samsung smartphones

*#*#3424#*#* or *#*#4636#*#* or *#*#8255#*#* – HTC smartphones

*#*#7378423#*#* – Sony smartphones

*#*#3646633#*#* – smartphones TEXET, Fly, Alcatel,

*#*#3338613#*#* or *#*#13411#*#* - Fly smartphones, Alcatel, Philips

*#*#2846579#*#* or *#*#2846579159#*#* – Huawei smartphones

*#*#2237332846633#*#* - devices from Acer

Immediately after entering, the command should disappear and open engineering menu. But on some devices you will still need to press the “Call” key

A list of sections of the phone's engineering menu will appear.

Just in case, take a notepad and pen and take note of the settings that were set on your phone before your intervention. You never know, anything can happen.

On my phone (based on an MTK processor), in order to get to the engineering menu I had to install a free utility (program) from " Mobileuncle MTK Tools“, which opens access to the engineering menu (that is, it works similarly to dialing the magic combination *#*#3646633#*#*).

I am sure that you will also find free applications for other phones there.

Volume settings for the speaker, headset (headphones) and microphone of the phone through the engineering menu

For clarity, let’s briefly look at setting the device’s volume level:

We go into the program or dial the magic combination to enter the engineering menu. Next, in the menu that opens, select the section “ Engineer Mode»

A section will open in which you can select the engineering menu of the Android system (we skip it), and the engineering menu of the phone itself.

We need the phone’s engineering menu, so select the “Engineer Mode (MTK)” section. This point is circled in the figure with a red marker.

A very long menu will open, through which you can get to almost any phone settings. But it’s not enough to get to them, you need to know how to manage them.

Therefore, do not change what you have no idea about.

At worst, write down the parameters that were before your intervention, so that you can return them back later. Let's continue!

Since we are interested in adjusting the sound level, select the “Audio” item, I circled it with a red marker.

And... magic! The menu of interest to us for setting the parameters of the speakers and microphone opens.

Why did we actually go into this menu? Doesn't something work like that out of curiosity? Okay, let's continue to figure it out!

It’s worth stopping here and figuring out what all these menu items mean.

Normal Mode(Settings section in normal or normal mode) – this mode is active when nothing is connected to the smartphone;

Headset Mode(headset mode) – this mode is activated after connecting headphones or external speakers;

Loud Speaker Mode(speaker mode) – it is activated when nothing is connected to the phone or tablet, and you turn on the speakerphone while talking on the phone;

Headset_LoudSpeaker Mode(speaker mode with a headset connected) – this mode is activated if you connect headphones or external speakers to your phone or tablet, and you turn on the speakerphone while talking on the phone;

Speech Enhancement(phone conversation mode) – this mode is activated in the normal mode of telephone conversations, and nothing is connected to it (headset, external speakers) and the speakerphone is not turned on.

Debug Info– it’s not clear why – information on backing up information or debugging it;

Speech Logger– I haven’t fully figured it out, most likely it was logging during negotiations or recording the conversation. If you check the box next to “Enable speech log”, then after completion phone call V root directory memory cards, corresponding files are created. Their name and structure take the following form: Day of week_month_year__hour_minutes_seconds (for example, Friday_July_2016__time17_12_53.pcm).

What these files serve and how they can be useful to us is unclear. The /sdcard/VOIP_DebugInfo directory (which is the storage location for files with backup information) is not created automatically; if you create it manually, it will remain empty after the conversation.

Audio logger– used to record sound that supports quick search, playback and saving it.

When you enter any of the modes, you will have access to various settings volume (Type). Here is a list of basic settings you need to know:

Sip – settings for Internet calls;
Mic – microphone sensitivity settings;
Sph – settings conversational dynamics(the one we apply to the ears);
Sph2 – settings for the second speaker (I don’t have one on my phone);
Sid – skip, if you change these parameters during negotiations on your smartphone or tablet, you can hear yourself instead of your interlocutor;
Media – adjust the multimedia volume level;
Ring – adjust the volume level of the incoming call;
FMR – FM radio volume settings.

Under the settings selection item, a list of volume levels (Level) is available (see figure).

There are usually 7 such levels, from level 0 to level 6. Each such level corresponds to one “click” on the volume rocker of your smartphone or tablet.

Thus, level 0 is the quietest level, and level 6 is the loudest signal level. Please note that each level can be assigned its own values, which are located in the Value is 0~255 cell. They should not go beyond the range from 0 to 255 (the lower the value, the quieter the volume).

To change this parameter, you need to erase the old value in the cell and write a new one, and then press the “Set” button (the one next to the cell) to assign.

Finally, at the bottom you can see the Max Vol section. 0~255 (on my smartphone, for example Max Vol. 0~255, it all depends on the manufacturer). At this point it is specified maximum value volume level, it is the same for all levels.

Dear friends. The names of the items may differ on different models. This is an MTK platform, so be prepared to rack your brain and look for a match in your menu. I have a Jiayu G3 phone.

For me the changes were applied immediately, but someone may need to restart the phone for them to take effect.

Although, it seems like you shouldn’t break anything, and if you don’t like the changes, you can always enter the old value..
But still..
YOU MAKE ALL CHANGES AT YOUR OWN RISK!!! Don't forget to turn on your thinking!

P.S.: I found a font size setting on my phone. It turns out you can increase it MORE!
P.P.S.: if something is still not clear, here is a video on setting up sound in the engineering menu:

Manufacturers of Android smartphones implement and use the engineering menu to test devices. It contains all kinds of tests and device settings that are not available to ordinary users. However, today, knowing the USSD command or downloading the application from PlayMarket, anyone can go to the engineering menu.

Why do you need a hidden engineering menu in Android?

Engineering menu (Engineering Mode) – at its core hidden application, which developers use to test and set the optimal parameters for a mobile phone or tablet. Specialists check the operation of the sensors and, if necessary, make adjustments to the functioning of system components.

When working with the Android technical menu, be careful - changing some functions leads to malfunctions of the device.

How to enter the menu

To open the menu installed by the manufacturer, activate the dial pad on your smartphone and enter one of the USSD commands presented in the table. After entering the command, the numbers will disappear from the screen, and a menu will open instead.

In the dial pad, enter a combination of numbers and symbols to enter the menu

Table: combinations for launching Engineering Mode

Device manufacturer	Team
Sony	##7378423##
	##3646633##
	##3649547##
Philips	##3338613##
Philips	##13411##
ZTE, Motorola	##4636##
HTC	##3424##
	##4636##
	##8255##
Samsung	##197328640##
	##4636##
	##8255##
Prestigio	##3646633##
LG	3845#*855#
Huawei	##2846579##
Huawei	##14789632##
Alcatel, Fly, Texet	##3646633##
Smartphones and tablets with a MediaTek processor (most Chinese devices)	##54298##
	##3646633##
Acer	##2237332846633##

Video: how to work in Engineer Mode

If the code does not work and in a standard way It is not possible to launch the service menu, use third-party applications - you can download them on PlayMarket. Recommended programs - “Launch the MTK engineering menu”, Mobileuncle Tools, Shortcut Master.

The manufacturer menu does not work on some device models with Android 4.2 JellyBean (x.x.1, x.x.2), as well as on Android 5.1 Lollipop. The menu is also invalid when installed firmware Cyanogen Mod. In Android 4.4.2, when you reboot, changes made in the application are reset.

“Launch the MTK engineering menu”

The application allows you to open and configure the engineering menu without typing digital commands. Works correctly on MediaTek processors (MT6577, MT6589, etc.) and Android systems 2.x, 3.x, 4.x, 5.x. According to user reviews, the program successfully performs its functions, but after rebooting the smartphone, the settings made using the application are reset.

Mobileuncle Tools program

The functionality of the application is similar to the previous one, but, in addition to accessing the engineering menu, the user has the opportunity to view information about the screen, sensor and device memory, as well as update the firmware, restore the IMEI number and improve GPS. For stable operation, root rights are required.

To enter the engineering menu, select Engineer Mode

Shortcut Master utility

The Shortcut Master program is designed to work with shortcuts and system applications: creation, search, deletion. It does not have a direct function for entering the engineering menu. But with its help you can view the list of secret commands operating on your device. And by clicking on the name of the command, you will see a drop-down menu in which there will be an item “execute”. Convenient and does not require unnecessary actions.

In the program, call up the additional menu and select Secret code explorer to see a list of codes

Root rights to access the engineering menu

To get to the service menu on some versions of Android, the user must have superuser rights (root). You can obtain rights using specialized applications: Farmaroot, UniversalAndRoot, Romaster SU and others. To get Root access to your device using Farmaroot:

Install and run the program. Link in Google Play: https://play.google.com/store/apps/details?id=com.farmaapps.filemanager&hl=ru.
If the application supports installing root rights on your device, then on the screen you will see a list of possible actions, among them - “Get root”. Select this item.
Choose one of the preset root methods.
The program will begin installation.
At the end of the procedure, you will see a message about the successful installation of root access.

Instructions for obtaining root access through the Farmaroot application

Possible problems and solutions:

the application closed mid-installation - restart the device and try again;
root rights are not installed - try installing using a different method (select a new exploit in the application).

What can be configured in the menu

The appearance of the engineering mode and the ability to adjust parameters may vary depending on the tablet or smartphone model. In the menu, users most often adjust the sound, change camera settings and use recovery mode. The parameters for adjustment and the procedure are given below. Be careful - menu item names may vary depending on various models devices! You act at your own risk.

Audio: Increase volume level

If your phone does not ring loudly enough, find the Audio section in the engineering menu and go to LoudSpeaker Mode. Select Ring. For each signal level (level 1–6), change the values - set the numbers in ascending order, from 120 to 200. Increase the value in the Max item. Vol - maximum 200. Press the SET button to save the settings.

Sequentially change the maximum volume values for each level

Audio: Increase phone call volume

To enhance the speaker tone for conversations, in the Audio service menu section, select Normal mode and open the Sph item. Set the values for signal levels (level 1–6) from 100 to 150, and the number for Max. Vol. – up to 160.

By adjusting the speaker volume, you will be able to hear your interlocutor better during a call.

To increase the sensitivity of the microphone, go to the menu Audio - Normal mode - Mic. For each level assign same values microphone sensitivity, for example, 200. Press the SET button, reboot and check whether the other party can hear you better.

Increased microphone sensitivity will allow the other person to hear you better

Video: adjusting sound parameters in the engineering menu

Battery: Disable unused frequencies

Smartphones quickly drain battery life running applications, maintaining cellular communications, and network connections. Using the engineering menu you can increase the battery life.

Modern devices scan several GSM frequencies - 900/1800 MHz and 850/1900 MHz. In Russia there is a 900/1800 MHz pair, which means there is no need to scan the network at other frequencies. The radio signal for the second pair can be turned off, which will significantly save the charge level.

In Engineer Mode, open Band Mode. Disable unused frequencies by unchecking the corresponding items - PCS1900 and GSM850. If the device supports two SIM cards, open the SIM1 and SIM2 items one by one and perform the indicated steps in each. Press the SET button to save the settings.

Disabled frequencies save battery power

If your smartphone and SIM card operate in 3G networks, disable the networks that are not used in Russia: WCDMA-PCS 1900, WCDMA-800, WCDMA-CLR-850. Press the SET button again.

You can enable scanning of disabled networks by returning to the same menu and checking the boxes.

Camera: photo and video settings

By default, Android devices save pictures in JPEG format. Meanwhile, photographers prefer to shoot and process material in RAW to gain more editing options. The technical menu allows you to select the desired image format.

Find Camera in the menu and select Capture Type. Set the photo format to RAW and press SET. Also in the Camera menu you can increase the size of pictures, set the ISO value, enable shooting in HDR for higher photo detail, and set the frame rate for videos. After changing each parameter, remember to press SET to save the settings.

Recovery Mode

Recovery Mode is an analogue of Bios on a computer, allows you to control the device without logging into the Android system. Recovery mode features:

resetting settings to standard;
firmware update;
access to root rights;
creating a backup copy of the OS;
removal of personal data from the system.

In Recovery Mode, do not perform an action if you are not sure what it will lead to. Some commands may harm the device and system.

If the settings are not saved

Users who have access to the technical menu complain that the parameters changed in it are not activated or are reset when the device is restarted.

To activate the settings after changing the parameters, tap on the SET button at the bottom of the screen. If the parameters are reset after rebooting the device, try accessing the technical menu not through the application, but using a digital command.

After setting the settings, do not forget to press the SET button

Service codes for Android devices

In addition to the technical menu, secret USSD codes - combinations of numbers and symbols, which the user types by typing to perform an action, allow you to control the functionality of Android smartphones. Secret codes for different devices are given in the table.

Table: list of secret commands for Android

Manufacturer	Digital Team	Meaning
Codes for most manufacturers	##7780##	Rolling back settings and uninstalling user applications
	27673855#	Firmware change, total settings rollback.
	##232339## ##526##	Checking wireless connections
	##34971539##	Camera details
	##232338##	View Wi-fi address
	##273283255663282##*	Activating media backup on your phone
	##1472365##	Express GPS test
	##0##*	Checking the screen
	##2663##	Viewing touchscreen information
	##2664##	Touchscreen testing
	##4636##	General device and battery data
	##0673## ##0289##	Audio tests
	##7262626##	Checking GSM reception
	##0842##	Vibrate and display brightness test
	##3264##	RAM information
	##232331##	Testing Bluetooth Communications
	##8255##	Checking Google Talk
	##232337##	Bluetooth address information
	##1234##	Device firmware data
	##44336##	Device build date
	*#06#	IMEI number information
	##197328640##	Service activity test
	##1111##	Free-to-air version of programs
	##2222##	Iron number for free-to-air
	##0588##	Checking the proximity sensor
Sony (devices use the same commands)	05*#	Unblocking a PUK code
Motorola	*#06#	IMEI
	##786##	Reverting settings to original
	##1234## ##7873778##	Opening applications with root rights
	##2432546##	Checking for updates
	##2486##	Entering the service menu
HTC	##4636##	Service menu
	3282#	EPST System Application
	##8255##	G-talk monitor
	33284#	Network status
	##3424##	Functionality test
	3424#	Device diagnostics
	7738#	Protocol diagnostics
	8626337#	Voice Coder
Samsung (generic codes are effective)	778 (+call)	Activation of EPST menu
LG (working with codes is replaced by the technical menu)	3845#*855#	International devices
	3845#*400#	Chinese devices
	5689#*990#	Sprint
	228378 (+ call)	Verizon Wireless
	3845#*851#	T-Mobile
	3845#*850#	AT&T

If for some reason the service code did not work, do not worry - install and run the Secret Codes application (Link on Google Play: https://play.google.com/store/apps/details?id=fr.simon.marquis. secretcodes&hl=ru). The program will analyze the combinations active in the device and offer you a list. You can activate the combination directly in the application with one click on the name.

There are many ways to improve your Android mobile device using the engineering menu. The menu structure differs in different device models, but the basic functionality is preserved everywhere. When opening and changing parameters in the service section, be careful - some commands lead to system failures and device failure.

The engineering menu on Android devices is a special “built-in” application into the operating system that allows you to fine-tune the device. This is necessary to debug the operation of the hardware and, of course, the software. But often users want to change some settings at their own discretion. In this case, the question arises of how to enter the Android engineering menu. This can be done using special service codes or third-party software.

Developer menu: what are the options?

Settings and menu design on Android devices may vary depending on the phone manufacturer. In general, users resort to using the engineering menu for the following reasons:

Setting up audio on the phone (ringer volume, interlocutor’s voice during a conversation);
Changing camera settings;
Using recovery mode;
Setting microphone sensitivity;
Disabling unused frequencies to save phone battery;
Obtaining information about the device's MAC address;
Setting up Bluetooth and Wi-Fi.

The Android engineering menu provides the user with almost limitless possibilities. But you should always remember that only advanced users can use it. Changing some settings may cause incorrect operation smartphone or tablet. If you don't know what each menu item directly does, simply leave it alone.

The developer mode includes setting up Hardware Testing equipment and also contains the following items:

Audio – volume control in the phone speakers.
Camera – allows you to configure various camera parameters (image size, type, etc.).
Diving current camera shows the current of the camera.
CPU Stress Test performs a test load on the central processor.
De-sense is a device manager that manages configuration parameters.
Display – setting the frequency of the outgoing signal.
IO – setting up input/output operations.
Memory Key information about memory.
Power – information about the battery.
SD Card Test - testing a memory card.
TouchScreen - settings touch screen, sensitivity test.
USB - testing the operation of the USB port on your phone.

In the Connectivity tab you can get information about devices that work with the outside world. These include Bluetooth, Wi-Fi and FM module. The Log and Debugging tab allows you to view the battery log, set the debugger level and run a special MTK log. In the Others tab you can change fonts, as well as view the temperature of the processor and battery.

Entering the menu: using code combinations

To enter the engineering menu as quickly and easily as possible, you will need special engineering codes. Each manufacturer has its own combination, which opens access to the engineering menu in Android.

To enter the menu you need to:

In most cases, this technique allows you to open the service menu. Below are some combinations for the most popular phones:

Models from HTC - *#*#3424#*#*, *#*#4636#*#* or *#*#8255#*#*;
Samsung devices - *#*#197328640#*#* or *#*#8255#*#*;
Sony smartphones - *#*#3646633#*#*, *#*#7378423#*#* or *#*#3649547#*#*;
Huawei phones - *#*#2846579#*#* or *#*#14789632#*#*;
Mobile from ZTE - *#*#4636#*#*.

There is also a universal code that is suitable for most smartphones and tablets running on an MTK processor. You can look in the specifications of your device to see what processor you have installed. If this is a MediaTek (MTK) product, then try using the combination *#*#54298#*#* or *#*#3646633#*#*.

If it works, you will see the developer menu in front of you. Some engineering codes on Android do not work in operating version 4.2.1 and 4.2.2.

Using Third Party Applications

How to enter the engineering menu on Android if Android codes does not work? There is a way. To enter the engineering menu, you will need one of the applications that will allow you to enter developer mode without entering a combination. IN official store Google Play has several similar programs. One of them is “Launch the MTK engineering menu”.

To use it, you need:

Go to the Play Market and enter the name of the program in the search bar.
Download and install it.
Launch on your phone.

After that, you will see a couple of tabs with different settings.

The application allows you to perform various tests (for example, a processor stress test), obtain information about the modem or memory, and much more. You can also make changes to the hardware. To do this, you just need to open the appropriate sections and configure the settings. In this case, the phone will be on all the time.

An alternative option is the Mobileuncle tools program. You can download it on the Internet. Install the application, and then go to the “Engineer Mode” submenu. Almost all developer menu items will be available in it.

Now you know how to enable Android developer mode. It will help you quickly produce necessary settings or monitoring individual smartphone components.

Smartphones and tablets running Android have many and interesting features, hidden from prying eyes.

Why are they hidden? Firstly, to inexperienced user I didn’t break anything, and secondly, they are needed in very rare cases and are not used regularly. Today we will talk about the engineering menu.

What is it and why is it needed?

We are talking about a special program that developers use at the final stage of configuring the software platform of a mobile device. With its help, they make final changes to the operation of the device, check the functioning of various sensors and test system components. Hidden functionality is also used to obtain a large amount of system information and conduct various tests (about 25 pieces).

Attention! This section is intended for experienced users who bear full responsibility for the consequences.

The engineering menu is available on smartphones and tablets running on a MediaTek processor. On the Qualcomm chipset it is either reduced or absent altogether.

How to open the engineering menu?

To enter the engineering menu, you need to enter a special command in the dialing application: *#*#3646633#*#*. On some versions the code *#*#4636#*#* or *#15963#* may work.

If the code did not work or you do not have a dialing application (relevant for tablets that do not support calls), the MobileUncle Tools or MTK Engineering applications, which can be downloaded for free via Google Play, will help.

Advanced users modern smartphones and tablets use numerous functions that engineering Android menu. It allows you to obtain information about the mac address, check or configure the operation of Wi-Fi, Bluetooth, update the software of the camera, speakers. Very often, using such a menu you can improve the sound on your device and make other fine adjustments. For example, return the original Google account settings, specify settings for blocking and turning off the device, set settings that allow you to create backup copy important information. Before entering the engineering menu, you need to understand that rash actions can lead to a malfunction of the device. It is advisable for the user to remember what changes were made to the system in order, if necessary, to return all settings to their previous state.

How to enter the engineering menu using the standard capabilities of the device?

List functionality can be opened by typing a certain combination of characters in the device's call window. The Android engineering menu code varies depending on the brand of phone or tablet. Each manufacturer sets its own combination. Such information is usually indicated in the instructions for the phone and on official websites. Users of modern devices usually have no difficulty finding the required code.

Below we provide a table of the most common combinations. It is not recommended to use them unless your device is one of the listed brands.

The developers do not recommend executing such commands without certain knowledge and experience. But often only this method helps to quickly solve a number of problems related to returning the device to its original state, receiving additional information about the device. The engineering menu is presented in English, which makes it understandable for most users.

Using additional programs

It is not always possible to find out the combination that is suitable directly for your device. In such situations, you can install special software on your mobile device, which will allow you to open a list of the functionality of your smartphone or tablet with a few clicks. It is publicly available for different versions of Android and device models.

The program for entering the Android engineering menu can be installed via a USB connection to a personal computer or laptop. One of them is called Mediatek Engineer Mode. It is a file EnMode.apk, which must be transferred to the device memory and installed in the usual way. This program is suitable for devices operating on the MTK processor. The user has the opportunity to download free and paid versions of the software.

IN Google store Play has the opportunity to download the Mobileuncle MTK Tools utility. It is designed for smartphones and tablets running Android 2.1. and more later versions. The description says that such a utility is also only suitable for devices equipped with an MTK processor.

The Mobileuncle Tools program is suitable for owners. There are other utilities, for example, Shortcut Master, engineering MTK menu, launching the MTK engineering menu. Before installing them, we recommend that you read the application rating, reviews from other users, and also check your device for compatibility.

Setting up optimal sound by opening the engineering menu

One of the most common reasons why users look for information on how to enter the engineering menu is the need to fine-tune the sound. The following situations may arise:

Poor audibility when switched on speakerphone
Sudden changes in the sound of an incoming call while listening to audio
Insufficient signal volume
Quiet sounds while recording video
Quiet operation of the headset and microphone.

This is just a small list of installed settings that can be changed through the engineering menu of a modern mobile device. Sound settings are done through the Audio section, which is displayed immediately after entering the menu. Then the screen will appear various tabs, for example, Headset Mode. This tab allows you to set sound parameters that are activated when you connect a headset. Normal Mode sets the sound in the normal state of the mobile device (without connecting headphones or speakers).

LoudSpeaker Mode tab, which are activated when the loudspeaker is turned on. Headset LoudSpeaker Mode allows you to make settings for the active loudspeaker mode while a headset is connected to it. The Speech Enhancement tab provides settings that come into play when communicating over a mobile network.

In any of the modes, you can fine-tune the microphone or increase the volume (see table).

The volume of any sound parameter has seven levels - from 0 to 6. The higher the value, the louder your device will sound. We do not recommend setting the maximum settings, as this promotes faster performance. In many devices, setting the volume to maximum can result in unpleasant noise.

The engineering menu is a mechanism for fine-tuning mobile devices operating on Android platform. For developers, the list of such features opens up new options when implementing applications. Of course, such a menu is used not only for setting sound parameters. It is an important tool that supports optimal performance smartphones and tablets. But it's best not to make changes you're not sure about.

Often in Chinese (and probably not only Chinese) phones Android based in the engineering menu there are far from optimal volume settings for the speaker, headset (headphones) and...

Often in Chinese (and probably not only Chinese) phones based on Android in the engineering menu there are far from optimal volume settings for the speaker, headset (headphones) and...

The instructions below are intended for those users of Android phones in which the speaker is very loud, wheezing, and when talking on the phone it is difficult to hear the interlocutor.

First of all, you need to find out at what volume level the phone starts wheezing. To do this, during a conversation, completely turn down the volume, and then gradually increase the volume using the volume control keys of your smartphone and thus determine when the speaker starts wheezing.

The volume on Android phones is divided into 7 levels (from 0 to 6), which you move through when you press the side volume key of the phone.

The figure shows that in my case, the wheezing of the speaker disappeared on the 4th press of the “+” volume key, that is, at level 4.

Now you need to enter the Android engineering menu (Engineer Mode) and adjust the corresponding volume levels. To get to the engineering menu, you need to dial a special code on the phone dialer. Each manufacturer mobile devices he is his own. The list below shows the phone codes of the most common manufacturers:

smartphones with MTK processor - *#*#3646633#*#*, *#*#54298#*#*.
Samsung - *#*#197328640#*#*, *#*#4636#*#*, *#*#8255#*#*;
HTC - *#*#3424#*#*, *#*#4636#*#*, *#*#8255#*#*;
Huawei - *#*#2846579#*#*, *#*#2846579159#*#*, *#*#14789632#*#*;
Sony - *#*#7378423#*#*, *#*#3646633#*#*, *#*#3649547#*#*;
Philips - *#*#3338613#*#*, *#*#13411#*#*, 3646633#*#*;
Acer - *#*#2237332846633#*#*;
Fly — *#*#3646633#*#*;
Alcatel - *#*#3646633#*#*;
Prestigio - *#*#3646633#*#*;
ZTE - *#*#4636#*#*;
TEXET - *#*#3646633#*#*;

You can also use special applications for Android that allow you to enter the engineering menu.

The "Shortcut" program deserves special attention.

It allows you to find secret codes phones that call this or that program, including the engineering menu.

In the engineering menu you need to find the "Audio" option. I have it on the "Hardware testing" tab. When you enter the "Audio" menu, you will see a list of modes:

Normal Mode – a section of the phone settings to which nothing is connected;
Headset Mode – this mode is activated when you connect headphones or another headset;
LoudSpeaker Mode – speakerphone mode;
Headset_LoudSpeaker Mode – speakerphone mode when a headset is connected;
Speech Enhancement – speech improvement (activated only in “Normal Mode”);
Debug Info, Speech Logger and Audio Logger – settings for logging and debugging.

Setting up the speaker

The following is true for the mode when nothing is connected to the phone (Normal Mode), but by analogy you can configure the speakerphone (LoudSpeaker Mode), headset (Headset Mode), etc.

We go to the "Normal Mode" mode.

The "Type" list can list several types of audio devices:

Sip – settings for IP telephony;
Mic – settings for the microphone;
Sph – speaker settings (handset);
Sph2 – settings for the second speaker (if anyone has one);
Sid – it’s better not to touch, an echo may appear;
Media – volume of multimedia (music, video, games, etc.);
Ring – incoming call volume;
FMR – FM radio volume settings.

At the beginning of the article, we determined the volume level at which the wheezing of the speaker stops (level 4). Select type "Sph". Select the 4th volume level (Level 4) from the “Level” list. Its value is 112. Next, select the nearest level (Level 3) and see that it is equal to 100, the difference between the levels is: 112 - 100 = 12.

Let's set new values for each of the "Levels" so that the maximum level has the value at which the speaker stops wheezing (112 in my case), and each previous one is less than the current one by a value equal to the difference calculated above.

ATTENTION!!! BE SURE to write down the factory settings so that in case of an error you can return them back!

After entering a new value, BE SURE to click on the "Set" button next to the input field!

By calculations, I determined the following optimal values for my phone.

Levels	Factory values	Custom values
Level 0	64	40
Level 1	76	52
Level 2	88	64
Level 3	100	76
Level 4	112	88
Level 5	124	100
Level 6	136	112

For me, the new settings took effect immediately after saving the changed volume values, but some phones may need to be rebooted or even turned off, removed/installed the battery, and turned on again.

Every owner of a smartphone with the Android operating system has probably more than once encountered inconsistency in sound volume in different device options or the problem of speakers that are too quiet, even in maximum volume mode. This becomes especially unpleasant when the sound cannot be increased even through the phone settings. However, there are other ways, for example, using the engineering menu. Increasing the volume in this case is not difficult.

How the sound is adjusted on phones and tablets running Android OS (“Android”)

The developers have included different volume modes in the Android OS, designed for different situations of using the smartphone, which depend on the connected devices. Thus, without a headset, the sound on the phone can be quiet, but when headphones are connected, it can suddenly deafen with melody incoming call. It is to eliminate such misunderstandings that you need to adjust the sound and change the volume using hidden methods.

How to change the volume of alarm, ringtone, music and video through settings

Sound control on a smartphone running Android OS is possible using buttons on its body, as well as through internal settings standard menu. The setup methods are the same for smartphones and tablets, so you can easily understand the functionality.

Go to your device settings and select the “Sounds and notifications” section.

Select the "Sounds and notifications" section

Depending on the system version, you need to either click on the gear next to the active mode, or open the “Volume” subsection. If you are afraid of losing the default settings, you can add new mode.

Click on the gear next to the active mode

In the window that opens, depending on the system version, the following options for changing the volume will be available to you:

for music, videos, games and other media files;

for calls and notifications;

for an alarm clock.

Adjust the settings so as to provide for all possible situations and prevent unexpected explosive sounds when a call or alarm rings.

The window will contain all the items that can be changed through standard settings

Another reason for a call that is too loud or not quiet enough may be the installed ringtones themselves. Standard sounds usually leveled in volume, but there may also be those whose beginning consists of bright, sharp sounds, unlike others where the sound increases slowly and gradually.

In the sound settings, open the “Ringtone” item.

A quiet ringing tone is one of the possible reasons why you may not hear your phone ringing

Listen to the proposed melodies and choose the most suitable one.

To listen to a melody, press it with your finger

In the same way, adjust the notification volume settings by visiting the corresponding section of the sound menu.

By analogy with choosing a ringtone, configure notification sounds

Check other settings and consider whether sounds such as key beeps when dialing a number, tapping and locking sounds will disturb you.

Mark only the sounds you need or set vibration

You can quickly change the sound level using the buttons on your smartphone or tablet. Manufacturers specially place these buttons on the body so that you can find them without looking and increase or decrease the sound. However, in this mode there are very few settings.

You can adjust the volume using the usual buttons on the phone body.

Pressing the volume up or down buttons will display the corresponding sliders on the device screen.

In some models, from this screen you can go to detailed settings by clicking on the corresponding icon to the right of the volume slider.

Displayed on some devices special button, designed to go to settings

Sometimes the smartphone spontaneously goes into silent or silent mode, for no apparent reason. This most often happens with Samsung, HTC and Lenovo devices. This situation may occur when changing the audio profile from quiet to loud, followed by an outgoing call. When the call is completed, new profile may go wrong, and the gadget will mistakenly restore the previous one. The solution is to reboot the device after changing the sound profile. This problem is related to bugs in the firmware version and is usually fixed by developers with the release of updates.

Increasing volume through the engineering menu

You can spend more flexible setup sound if you go to the Andoid engineering menu. However, this section of the device is not so easy to access. The developers deliberately hid it from view ordinary users so that they cannot reset the settings and disrupt the operation of their device.

But for smartphone owners who want to understand everything and thoroughly study the operation of their device, the ability to access such settings is a real gift.

Do not forget that thoughtlessly changing parameters in the engineering menu can lead to malfunction of the gadget.

Before changing anything, you need to read all the available information on this item, compare it with how it looks on your device, and think about how you can quickly return everything back in case of unexpected behavior of the gadget. Only if you are confident in your own actions, you can proceed with the settings. It's best if you take a screenshot of the screen or copy the original values into Notepad before making changes so you can restore them back.

Opening the menu via call

To enter the menu engineering settings doesn't require much effort and Root rights. The menu is entered through the dialing interface using a special code.

The access codes to the engineering menu are different for all devices, as they are set by the manufacturer, not by the system. All of them will be presented in the table below.

You need to dial the entry code to the engineering menu in the same way as a regular phone number. The engineering menu usually opens on its own after typing the last character of the code. If this does not happen, press the "Call" key.

Try different options if the first one doesn't work

Table: access codes

Opening the menu through the application

If none of the codes work for you, try downloading from the Play Market special utility, which will create a separate shortcut to go to the engineering menu.

Open the Play Market and enter “engineer mode” in the search bar and select the first application you like.

All applications for entering the engineering menu are the same, so you can choose any

Install and launch the application.

The application will weigh very little and installation will not take much time

You will either be automatically sent to the engineering menu, or you will have to check the manufacturer of your device (or processor).

In some cases, you will need to check the manufacturer of your device

Increasing volume: step-by-step instructions

First of all, you need to open the Audio section. If it's not available initially, swipe left a few times to open it. Hardware tab Testing.

Open the Audio section in the Hardware Testing tab

Now you will see a list of modes available for changing; you need to select one of the proposed ones.

The meanings of all modes are described in the table below

Now select the option to change in the Type section.

The values of all sound parameters are described in the table below

Select the volume level you want to adjust. There are 7 of them in total (from 0 to 6). These are the same levels that are set in the standard settings of the smartphone (when you press the volume up or down button on the smartphone, the level changes). It is best to start from the zero and last levels.

Set up the first and last levels first

Now you need to set the volume gain of the selected level (Value is) and press Set.

Set the volume gain and confirm the change

Similarly, you need to set the volume limit (Max Vol.). This is the maximum possible volume.

Set the volume limit to the selected level and press Set

In accordance with the set values, set the remaining levels so that the volume change through the buttons is as smooth as possible.

Calculate the volume levels on the calculator and adjust the missing ones

Similarly, configure other parameters and volume modes if they interest you.

Table: mode values for earpiece speaker, headphones and microphone

Table: description of audio parameters

Video: how to increase the volume through the engineering menu

How to increase volume through apps

In addition to the standard settings and system engineering menu, there is special programs, which allow you to make additional changes to the sound settings of your smartphone or tablet. Various programs do not work correctly on all devices, since they interfere with the normal functioning of the phone, and this is not welcomed by manufacturers. All of the programs described below are available in the Play Market.

You should also understand that such services for editing any smartphone restrictions that cannot be changed in normal ways can lead to disruption of the gadget’s operation and ultimately only worsen its performance.

Volume+ (the most reliable application)

This app is only available on English language, but is the least conflicting and almost incapable of causing sad consequences for your smartphone.

Find Volume+ in the Play Market and install it.

Paid version Volume+ is pointless to download

Launch the application and select the “Speaker Settings” section.

Volume+ has a lot of features, but you won't need many of them

The next screen will present a list of options available for change. First, check Speaker Modifications and Virtual Room Effect. virtual space).

Check Speaker Modifications and Virtual Room Effect

Then increase the Volume Level, Bass Enchance and Virtual Room by one notch (this will increase the volume slightly).

Increase the marked parameters by one notch and check the effect

Test the changes in practice and change the settings again if necessary.

A sharp increase in parameters can cause freezes, crashes and other troubles in the operation of the device.

JetAudio (equalizer and effects settings)

Jet Audio belongs to the category of equalizers and is very functional program: It has an audio converter, player and ripper. Equalizer is just one of its options. The standard sound mode it uses is Normal Mode.

Find JetAudio in Play Market and install it.

JetAudio may be called a player or an equalizer, but they are the same program

Click on the button on the right top corner to open the settings drop-down menu.

If the “Equalizer” button is accessible from the main screen, click on it

Select " Sound effects…».

If the “Sound Effects...” button is missing, find the equalizer through “Settings”

Now open "Equalizer".

The rest of the buttons that appear may also be useful to you, especially the sound amplifier

On this tab, you can safely experiment with all the values without fear of harming the device. If you click on the button in the upper right corner, a list of additional built-in programs designed to change sound settings.

All changes made can be very easily returned back

The parameter with a value of 60 Hz must be left unchanged.

Do not forget that by increasing the volume of the sound, you lose in its quality, since not all models of smartphones and tablets are designed for good melodies. Some devices have weak speakers, excess load on which will cause wheezing and extraneous sounds. Don't let the speaker burn out and take care of your gadget.

Volume Booster Plus (automatic sound adjustment)

The program is available in the Play Market app store and is the easiest to use.

Volume Booster Plus is the easiest to use volume control software

After installing and launching the application, you will see only one button that you need to click on.

After pressing the button in Volume Booster Plus, automatic optimization of volume parameters will begin

Ways to strengthen the speaker using improvised means

There are some neat tricks that can help you increase the audio volume on your device in a very simple way. To do this, you will only need available materials and minimal knowledge of the laws of physics.

Connect external speakers or speakers to your smartphone. Almost any external device sound reproduction will be better than the speaker built into the smartphone. Firstly, because it is larger in size and has more power. And secondly, gadget manufacturers often save on speakers by installing low-power ones, since users usually prefer to use their own speakers and headphones.

Place your device in a glass glass to enhance the sound when listening to music. Many gadget owners have already tried this method, despite the fact that it seems stupid. The glass works as a resonator, reflecting the sound wave. Some smartphone owners cut out horns from paper cups and attach them to the speaker of the gadget. To increase the volume of the alarm, especially witty users place the phone on a saucer with a coin and turn on the vibration mode at the same time as the ringing.

Take advantage of the acoustic properties of materials outside world, which can reflect sound. Find a painted wall nearby and place your phone so the speakers are facing it. The sound will be reflected and intensified. Experiment with other similar materials.

How to remove the maximum sound level limit

Manufacturers of smartphones and tablets often set software restrictions on changing volume settings. That is, using the interface, you can set one sound level, but in reality the gadget will make sounds much quieter than you would like.

There is an opinion that to bypass this limitation, you need to reset the gadget settings to factory settings. However, there is no exact data on how this will affect your device specifically. There are a lot of gadget models; each manufacturer follows its own logic when setting standard settings. Resetting the settings will inevitably lead to the deletion of data on the phone. Therefore, if the effect of volume-increasing applications is not enough for you, be well prepared and back up the information from your device.

Reset the settings to factory settings, and then select the North America region as the default for your gadget. This is because smartphone manufacturers impose such restrictions in some countries, where societal norms may prohibit the use of settings that could violate the rights of others.

One of the main problems of cheap smartphones is the poor quality of the built-in speakers, which causes serious difficulties in sound reproduction. However, several simple ways, from built-in parameters to the use of improvised tools, will help owners of smartphones with Android OS quickly navigate the situation and change the sound settings to more comfortable ones.

Very often, smartphone owners encounter a problem when the microphone on the phone does not work or works very poorly. There are actually several reasons why this happens, ranging from a banal software failure to a hardware failure. Actually, this is what our article will discuss. We will also additionally consider the question of why the microphone on the headphones does not work, which is also a fairly common problem. In general, it will be interesting!

Software glitch

The first reason why the microphone on the phone does not work is a malfunction operating system. It doesn’t matter at all what OS is installed on the device - Android, iOS, Windows or any other, failures happen everywhere and they happen spontaneously.

How can you deal with the malfunction? There are several options, and the simplest one is to reboot the device. As a rule, in most cases this completely eliminates the problem and the microphone begins to function again. The second option is more radical - resetting the settings to the factory state. Sometimes software glitch may be much more serious than it might seem at first glance, and a simple reboot will not fix it.

Dust and dirt

The next reason why the microphone on your phone may not work well is dust and dirt. The microphone holes on the body of your device are quite small and often become clogged with small dust particles and particles of dirt. As a result, the sensitivity of the microphone is significantly reduced, and if it is very dirty, it almost disappears.

This problem can be fixed quite easily:

First you need to try blowing air through the microphone. You can try to blow it yourself or use a can of compressed air.
This may not always work, since dust and dirt particles can accumulate quite heavily. In this case, you will have to use a thin needle (or any other thin object). It should easily penetrate the microphone hole, and with its help you can remove all the dirt that has collected there. You just need to act as carefully and carefully as possible, without pushing the needle too deep, otherwise there is a risk of damaging the microphone itself.

Poor contact

Oddly enough, falling a smartphone is also often the reason why the microphone on the phone does not work. Especially it concerns budget devices from little-known manufacturers, since their build quality is very poor.

Actually, what are the dangers of falling devices for the microphone? It's simple. If dropped, there is a risk that the microphone cable, which is connected to the main board, may break contact or be completely disconnected from its connector. As a result, the microphone will either work with serious interference or stop completely.

There is only one way to fix this problem. You need to disassemble the device and connect the cable in its place. You can do this yourself or take the device for repair.

Moisture ingress

Moisture ingress is also a common reason why the microphone on the phone does not work. Here it’s not even particularly worth explaining how moisture gets inside: wet hands, using the device during rain, in the shower, bathhouse, sauna, etc. If moisture gets inside, it can not only disrupt the operation of the microphone, but also completely damage it . The only way To fix this problem - replace the microphone with a new one.

Microphone malfunction

And finally, the last reason why the microphone on the phone does not work is a malfunction of the “micro” itself. This often happens that without any visible reasons the microphone simply breaks. Of course, sometimes a defect during production can become a factor for breakdown, but, as practice shows, microphones that are assembled absolutely correctly also break.

The way to fix the problem here is exactly the same as above - completely replacing the faulty part with a new one.

Microphone on headphones

Well, as a bonus, it’s worth saying a few words about why the headphone microphone on the phone doesn’t work. This is a fairly common problem, which, in turn, is divided into two:

The first reason why the microphone on the headset does not work is a banal malfunction of the microphone itself or the 3.5 mm input on the phone. The easiest way is to check if this is true on another device.
The second reason is that the sensitivity of the microphone through the headset is set to almost 0. This type of malfunction occurs very rarely and is corrected through the engineering menu.

Access codes for the latter must be found under specific model because they are all different. Once in the engineering menu, go to the Hardware tab and select Earphones and Mic there (the name may vary).

The Speech Enhancement item is responsible for adjusting the sensitivity. You need to experiment with the parameters and choose required values, at which the microphone on the headphones will begin to function. It's also a good idea to write down the default menu settings in case something goes wrong.

It's unpleasant to discover that the microphone on Android doesn't work. This makes it impossible to use such familiar functions and necessary functions phone like calls, creating audio and video recordings. Sometimes this can derail even the most serious plans. For normal operation You need a working microphone and the ability to freely pass sound. What are the causes of failure?

Moisture getting under the housing;
Shocks, falling of the phone and other damage;
Unprofessional cleaning of the microphone with a sharp object;
The microphone is clogged, preventing free passage sound waves;
Problems with the speaker of your interlocutor, after a conversation with whom there were suspicions about a breakdown;
Sound doesn't work specific application, and not on the phone in general;
Program error.

What can be done? Think about what's happened to the smartphone lately. If everything points to the presence of mechanical damage to your device, it makes sense to think about contacting a repair service center. IN in this case You won’t be able to fix something yourself, and the intervention of an unqualified specialist can increase the cost of repairs and damage the phone even more. If problems with your old smartphone happen frequently, maybe it makes sense to buy a new one if possible?

Before we figure out how to fix the microphone not working on Android, let's consider how the microphone works. A microphone is an electroacoustic device that converts sound vibrations into electricity. It is needed for recording and amplifying audio. The principle of operation is that the vibration pressure touches a sensitive membrane. It also creates electrical vibrations that are processed by other parts of the phone. For proper operation speaker system smartphone, as you understand, the following conditions are needed: the possibility of unhindered passage of waves, the functionality of the microphone, correct work remaining elements.

Does the sound come and go again? This means that the electrical contacts are damaged. Most likely due to moisture or impact. Take your phone for repair. If the signs of the problem are different, move on.

Doesn't work when talking. Sometimes this does not interfere with use third party applications with the same function. The fact is that many phones have two built-in microphones: a conversational one and an external one. They work together to distribute functions to improve sound quality. During a normal call you can’t hear anything, but when communicating in the application everything is fine? This means that your conversational microphone is broken, but the external one is working, so the microphone on Android does not work when making a call. Such a problem can be accurately diagnosed and repaired at a repair service center.

Very hard to hear. The sound is distorted, the interlocutor hears almost nothing. This happens if you use a headset during a conversation. Most likely, the microphone works, but something is preventing sound waves from passing through unhindered. That is, the sound collector is clogged with dust, sand or something else. Gently blow or clean this small hole in the phone. Just be careful not to damage the mechanism. If that's the case, it should help.

Software problems

Sound does not work in Skype. Does your interlocutor not hear you? Dial someone else or contact the dedicated Echo service. Assistant Echo will prompt you to record the sound and then play it back. To do this, look for “Sound Check Service” in your contacts. Follow the assistant's instructions. No sound on recording? Make sure your device is connected to the Internet. Close all other programs except Skype. Update the application version. Did not help? Try using a headset.

The microphone does not work in other applications. What can I do? First, call someone using standard Android tools or record the sound on a voice recorder to understand whether the microphone in your Android phone or separate application.. In the second case, make sure it was loud enough. Check your settings. Maybe the application refuses to work with the built-in microphone and only receives sound through the headset? Is the sound just muted or is the other person’s speaker not working? Alternatively, you can clear the data of problematic applications, but keep in mind that saved passwords and caches will be deleted. Roll back the version of the program to the previous one by downloading its apk file from the official website or, on the contrary, install a new one via the Play Market. You can try to simply reinstall the application. As a last resort, use another program.

Boot into safe mode. This will help determine if there are applications that are interfering with the microphone. Each manufacturer requires a separate approach. How to boot into Safe Mode? Reboot your phone. When you see the welcome screen, hold down the volume up or down button (depending on the brand). Do not release until the smartphone turns on. IN this mode Is the microphone working properly? Maybe a low-quality sound modification program was installed. Remove suspicious applications or reset settings to factory settings. Remember that after resetting, all information that was in the phone’s memory will be deleted. Transfer the data to a memory card, computer or other storage device. Sync your contacts or transfer them to a SIM card.

What should I do if the problem arose after replacing the firmware with a custom one? Use only official versions Android to avoid conflicts between the system and hardware. Restore the standard firmware via the Recovery menu.

Go to the recovery menu.
Select "wipe data/facroty reset" - this will reset all settings.
Highlight and confirm "wipe cache partition" - the cache will be cleared.
Select "installzipfromsdcard".
Specify the path to the archive on the memory card. Confirm your choice.
Wait for the process to complete.

The microphone does not work in certain cases. Update your Android version. To do this, go to “Settings” – “About the system” – “System updates” – “Check now”. If new firmware versions are available, confirm your choice. When the operation is completed, the device will reboot - this is part of the process. There is a possibility that after this the problem that the Android microphone does not work during a conversation will be eliminated.

The microphone works fine, but I would like to increase its sensitivity

It is better to make this decision with caution and implement it carefully. You can download the Volume+ application, but for more serious changes, use the engineering menu. Note that increasing the sensitivity will not help when the microphone is faulty.

Open the engineering (service) menu in the phone number dialing section. The combination of numbers depends on the smartphone manufacturer. If you don't find the manufacturer's code for your model in articles and forums, try a combination of other popular developers.
Select the section “Audio” – “Normal mod” ( normal mode, not a loudspeaker, for example) – “Type” (volume) – “Mic” (microphone) – “level” (the level by how much the volume will increase when the sound is increased in games, when talking, etc.).
Set it to level 6.
Value is 0~255 set to 64.
Save the changes by clicking on “Set”, confirm with “ok”.
Find the largest permissible value for the column “Max vol” ( maximum volume) Your smartphone model. Please indicate it in this column.
Exit the engineering menu as you would any other application.

We hope that you will no longer be bothered by the problem that the microphone on your Android smartphone does not work, and using the device will become more comfortable.