Turns on after software update. Problems with an Android device after flashing: causes and solutions
Even modern gadgets at high level technology developments may fail. There are often cases when your smartphone simply does not want to turn on. Many people fall into a stupor and don’t even know what to do if their phone doesn’t turn on. We will give the most common causes of this breakdown, as well as possible methods solutions.
Why it doesn’t turn on and how to solve it
In most cases, the problem is related to the gadget's battery. A less common option is problems with the operating system. Before taking your device into service center and prepare money for repairs, we recommend taking a few independent steps to identify the problem. The problem may be trivial, which you can solve without outside help.
Battery faults
There are several reasons why your phone won't turn on. Perhaps the battery is simply dead and charging is not having any effect. This is the most popular problem, but there may be several reasons:
- Another reason why Android won’t turn on is that the power button is broken. If you have new smartphone, then it could be a marriage. Then take it back and exchange it for a new copy. Otherwise, you will have to contact a workshop, where they will replace the button for money if the problem really lies there.
- The worst case scenario is that the power controller on the phone has burned out. It is he who is responsible for the charging process of the gadget. The only way out– take the phone to a service center and then replace it.
As you can see, users can solve most problems on their own if the phone does not turn on. To extend battery life, do not frequently discharge the gadget until complete zero, and use only certified chargers from the manufacturer.
Memory card
The problem may be that you inserted an SD card into the gadget that the smartphone does not support. This may lead to failures in program code and impossibility of inclusion. How to turn on the gadget? Just slide out the wrong memory card. If it still does not activate, you may have to reflash your smartphone.
Beforehand, always read the specifications which memory cards your mobile device supports and up to what capacity. You can also get advice from mobile showroom sellers.
Incorrect system update
Some smartphones, after updating to a more recent firmware, turn into , which will no longer turn on using the usual method. The solution may be to restore to factory settings. This can be done using . To enter it, run the following actions:- Hold down the "Volume Up" key.
- Without releasing it, hold down the Home key.
- At the same time, press the third “Power” key.
On some smartphones, the transition is carried out by pressing “+.- volume” and the “Power” button. Using the volume keys, you need to move the slider to the line “ Wipe data/factory reset", and then confirm your choice by clicking "Yes - delete all user data".
You will be able to clear the cash and data section. But be careful as all personal data (photos, contacts, videos and apps) will be lost. If there is something important on your phone, contact the service center.
This is relevant if loading your phone hangs at the “Android” icon. This also speaks about incorrect operation microprograms On some devices there is special button, which can only be pressed with a needle or toothpick.
Viruses
If your phone won't boot, there may be files operating system have been damaged by some virus. Here you will need to reflash the phone. In some service centers, specialists will be able to restore the phone’s functionality by cleaning it from viruses. To avoid such situations, we recommend downloading applications only from official store"Play Market", and also install an antivirus. You can choose ESET or Dr.Web for mobile devices.
Let's look at a fairly common problem that owners of new cars usually encounter. Samsung Galaxy. The problem is this: the smartphone does not turn on after the update software. This happens because the phone is constantly connected to the Internet.
The phone receives various updates that may either be unsafe for your Samsung, or may not be installed correctly, or may contain errors made by the system update developers, which, in turn, can also lead to problems with the device.
Problems begin to appear immediately after the software update. This could be a constant reboot of the Samsung Galaxy, freezing when turning on the phone at the “Samsung” inscription, or simply our Galaxy does not boot and shows no signs of life. You can try to take out the battery and SIM card and install it again. If nothing changes, then only exceptional measures will help us. If your iPhone 5s does not turn on, then follow the link.
Solution
In order to “cure” our phone and not run to the service center, we will need to roll back to old version android, so to speak, commit full reset Samsung settings to the initial ones. It is worth warning that this procedure deletes all data on the phone: audio, video, SMS, numbers of friends, etc. So, let's start: 
- Need to call Android system recovery. This is done quite simply. With the phone turned off, you need to simultaneously press three keys for 10 seconds: the volume up button, the menu button under the phone display, and the lock button. At the top of the screen it will say “Volume up/dawn to move highlight; power button to select" which means "Use the volume buttons to select and the lock button to confirm."
- Select the line wipe data/factory reset from the proposed list and press the lock key to confirm.
- After this we need from big list containing the word “No”, select the only line containing “Yes”: Yes – delete all user data. Once selected, click on the block button.
- After resetting all settings, the menu will appear again. In which we will need to select Reboot system now and press the lock button to confirm this.
Result
As a result, we get a practically new, unclogged Samsung Galaxy. You can try installing the desired update again. If the problem recurs. It is best to wait until the developers fix the errors. The main thing is that our Samsung Galaxy works again as before.
What to do if your Samsung phone does not turn on after updating - video
We advise you to look at other articles on this topic:
Let's look at a fairly common problem that owners of new Samsung Galaxy usually encounter. The problem is this: the smartphone does not turn on after a software update. This happens because the phone is constantly connected to the Internet.
The phone receives various updates that may either be unsafe for your Samsung, or may not be installed correctly, or may contain errors made by the system update developers, which, in turn, can also lead to problems with the device.
But it also happens that there are applications that store data that consume space in the phone and this can sometimes affect correct work. In a separate application case, the cache memory is deleted according to the instructions on information page application, but it is also possible to perform a general cleanup through the "cache data" function. In the "Device Storage" section, accessed through "configuration," Hildenbrand explains.
Remove "widgets" that are not used regularly, he says in an article posted on the website. And second: If the launcher has animations and special effects that look great, it's worth checking their settings to remove them because they are slowing down your phone.
Problems begin to appear immediately after the software update. This could be a constant reboot of the Samsung Galaxy, freezing when turning on the phone at the “Samsung” inscription, or simply our Galaxy does not boot and shows no signs of life. You can try to take out the battery and SIM card and install it again. If nothing changes, then only exceptional measures will help us. If your iPhone 5s does not turn on, then follow the link.
- Update your operating system whenever possible.
- Disable everything automatic functions offered by the device.
- This is done in the "Configuration" section.
Troubleshooting device reboots
After you have implemented each of the suggested solutions, verify that the problem is resolved.
Troubleshooting apps that randomly reboot your device
Checking for application updates. An app update may provide improvements that resolve the issue.Solution
In order to “cure” our phone and not run to the service center, we will need to roll back to the old version of Android, so to speak, completely reset Samsung to its original settings. It is worth warning that this procedure deletes all data on the phone: audio, video, SMS, numbers of friends, etc. So, let's begin:
To check and update your apps, follow these steps: Typically, closing applications is not necessary. However, to stop the application completely, including any background services you may be using, it does the following.
How to return the old version of Android after updating through recovery mode?
To more easily determine problematic applications, create a list of apps that made you stop. Check if the application is causing the problem. An unloaded application may be causing the problem. To find out if the problem is caused by an app, restart your device in Safe Mode.
- Need to call Android system recovery. This is done quite simply. With the phone turned off, you need to simultaneously press three keys for 10 seconds: the volume up button, the menu button under the phone display, and the lock button. At the top of the screen it will say “Volume up/dawn to move highlight; power button to select" which means "Use the volume buttons to select and the lock button to confirm."
- Select the line wipe data/factory reset from the proposed list and press the lock key to confirm.
- After this, we need to select from a large list containing the word “No” the only line containing “Yes”: Yes – delete all user data. Once selected, click on the block button.
- After resetting all settings, the menu will appear again. In which we will need to select Reboot system now and press the lock button to confirm this.
Result
As a result, we get a practically new, unclogged Samsung Galaxy. You can try installing the desired update again. If the problem recurs. It is best to wait until the developers fix the errors. The main thing is that our Samsung Galaxy works again as before.
If the problem persists in Safe Mode
To do this, he performs the following steps.
If the problem goes away in Safe Mode
- Follow these steps to enable Safe Mode.
- Safe Mode temporarily disables all downloaded applications.
- After enabling Safe Mode, check if the problem is fixed.
After deleting each one, it reboots the device and checks if the problem is resolved after deleting the app. After uninstalling the app that is causing the problem, you can reinstall other uninstalled apps.
- Reboot your device to exit safe mode.
- Uninstall the apps you recently downloaded one by one.
What to do if your Samsung phone does not turn on after updating - video
You can download and install official firmware “over the air” if you go to the appropriate settings menu or through a proprietary utility on your computer. But what to do if you already long time Is your Android not updating or does it give you an error when updating? Let's look at the possible causes of this problem, as well as ways to solve them.
Removes external sleeves and batteries. If you put your sleeves down, external batteries or other third-party accessories on your device, remove them during the troubleshooting process. Make sure that external accessories do not cover your phone's sensors or come into contact with the buttons.
If you factory reset your device, you can remove the processes that are causing the problem. They slow down, generate errors when launching applications, consume battery faster, freeze and even automatically reboot.
- Most phones are not as fast as a computer.
- You need to manage memory regularly to keep your computer running properly.
Installing unofficial software
Official updates for Android are available only for devices whose owners agree to the developer’s software use policy. If the installation of applications from unverified sources is enabled on your phone, an update error may occur. The same applies to downloading custom firmware and recovery, as well as devices on which administrator rights have been obtained. For such smartphones you cannot install official updates OS, both “over the air” and using a proprietary utility on the computer.
Under Settings, select Privacy, Backup & Restore, and make sure My Settings & AutoRecovery is not selected. Make sure you have enough free space to avoid future problems. If the problem persists, the most likely causes are installations of recent applications. If you have updated your software, try it and see if the problem persists. If you uninstalled any third-party applications when the problem occurred, uninstall them and check the problem. Check if the problem persists.
- Check for software updates and download.
- Perform basic reconfiguration.
- Query and follow the steps you normally would.
- Services are installed one at a time.
- It's possible that one of the phone's apps caused the problem earlier.
- Continue troubleshooting if the problem persists.
- Perform basic device reconfiguration.
Virus infection
In the absence of antivirus software, the phone's operating system is susceptible to malicious files. Virus programs can be downloaded from the Internet, or by allowing apk installation applications from unverified sources. Since the effects of malicious files can be very different, one of the possible options is blocking the service responsible for updating the Android OS.
If your device reboots, it means you waited too long to make a choice. You must start the process again. You can try this step by holding your phone horizontally. The device will display additional menu options. The device will restart and the normal power-up sequence will begin.
Here are some images of the menu that will be observed. On the right is a menu with additional options after launch. Lung problem solutions and that removes the blow of many headaches. And, of course, without unlocking the bootloader. Sorry for not being able to respond to all comments.
Incorrect installation of updates
When updating Android, you must wait until the files are completely downloaded and installed. In this case, the device spontaneously reboots a couple of times. Problems may arise if an error occurs during the installation of updates caused by one of the following factors:
- The Internet stopped working on my mobile phone.
- The battery has run out of charge.
- The phone was forcibly turned on, etc.
This can not only cause the update installation service to not work, but also render the phone inoperable.
Regardless of your mobile model, we will show you solutions that will help you solve this problem. While the company simply says it's an app failure and not the phone, it all seems to be related to the configuration level, so you can try the following steps to resolve the issue.
The phone doesn't get past the boot logo
Having problems with notifications? Are you receiving messages but not showing up? We help you find the problem.
When we encounter boot failure problems and we have serious problems and if we see the phone frozen in the boot logo, we may have installed something that has affected the boot sequence of the phone, or even could have done it to ourselves.
Hardware failure
The least likely, but also possible reason is a broken phone. If, after updating the OS, the mobile phone does not see the SIM card or simply does not start, it may have hardware problems. In most cases, this is the result of a manufacturing defect or occurs after the smartphone falls on a hard surface or gets moisture inside.
Skip the logo but stay in the loading animation
If this fails, we can take the battery for about 10 seconds and try again. In case of refusal, contact technical support and send our device. Boot animation- this is the animation that we see behind the logo when the phone is turned on.
Login to recovery
If the problem persists, then something was done incorrectly by setting a zip code that may be inconsistent or incorrectly set. Here we highlight two problems: if it does not charge, we must try to take the battery out for a few hours and put it back. If after this we have checked that it is still unloaded, the problem is in the hardware and you should contact technical service.
Solution
To solve problems with updating Android, you may need root rights access to the telephone system. But in more cases, you can try to do without them. In any case, you must first perform a forced check for new OS versions in the main settings menu. Let's consider all the methods in more detail.
But if it doesn't turn on, the fault could be either hardware or software, and could be caused by an electrical failure unless we mistakenly changed the bootloader. Be that as it may, you can try to check it back to its original condition or service it.
If it doesn't, try setting this folder path. But you can be happy instead pink screen have a blue color. This usually happens due to processes and modifications without having a clear idea of what we are doing, causing the screen to freeze in that color.
Forced verification through settings
The new OS version may not appear in the notification list until you go in and download it yourself. You can force a check for updates in a few clicks through the main settings menu; to do this, you need to find and select the “OS Version” item. In it you need to click on the “Check now” line and wait until the system connects to the developer’s server. Naturally, the Internet on the phone must be turned on, preferably a Wi-Fi connection.
For everything else - maintenance. These are just some of the problems we may encounter and some possible solutions. While we hope no one has had any problems, if unfortunately you have, please tell us about your experience.
To say that smartphones are convenient communication devices would be underestimating the year. This is because it not only allows users to make phone calls, send text messages And emails, but also update social media networks.
Part one
If your device won't turn on, you may immediately worry about how to recover your data, especially if you haven't backed it up to Lately. There are many reasons, some of the most common. Your device's battery may be damaged, so before you panic, plug your device into a charger and see if it turns on. Some users are reporting this issue on fully charged devices. You can buy a new one or borrow one from a friend. The power button can also pose a problem.
Part two
- In this case, the battery itself may be faulty.
- To check, simply replace the battery.
- So go with a professional to get rid of it.
Software Update
Settings menu
Verification via USSD request
An alternative way to force verification is to dial a combination of numbers into the dialer. To do this you need:
- Open phone book with dialing.
- Dial request *#*#2432546#*#*.
- Wait until the system performs a check.
In this case, you do not need to confirm your request by pressing the call button.
Clearing Google Services Framework data
Clearing Google service data can help solve the update problem. Services Framework. To do this, go to the main settings menu and tap on the “Applications” item there. In it, use a side swipe to select “all applications” and find it in the list provided Google Services Framework. By clicking on required service A control menu will open in which you need to clear the data by clicking on the corresponding button.
Service parameters
Google Services Framework Tab
Using a PC on which proprietary utilities from the developer are installed
Installation in a reliable way latest updates The mobile phone operating system will use proprietary utilities from the developer. In this case, you will also need to download the latest version of drivers for your mobile device on your PC. Let's consider the algorithm necessary actions For Samsung smartphones and the Kies proprietary program:
- Create backup copy data, if necessary.
- Download and install the utility Samsung Kies from the developer's official website.
- Connect your mobile phone to your computer via a USB cable.
- The program will automatically recognize the device and provide information about available versions firmware on the screen.
- Confirm the request to install new firmware.
- Read the supporting instructions and click on the “start” button.
Installing firmware via the proprietary Kies utility
When you perform these steps, the firmware download will begin via special utility, and the phone itself will go into Download mode. After this, the mobile phone will reboot with the already updated OS, and a notification about the successful completion of the process will appear in the Kies program.
Installing third-party, custom firmware
If none of the methods worked and you are unable to install official firmware on your mobile phone, then download the custom one. True, in this case you will need to root the device and say goodbye to the manufacturer’s warranty. If this is not critical, then we recommend paying attention to Cyanogen. This firmware is very popular and supports many functions that are not available in official versions of Android.
Cyanogen firmware desktop
Appearance
Installation of third-party firmware is possible both through the recovery menu and using special programs. If system failures or software problems occur, in this case it is easy to make a backup or reset to factory settings.
Many users wanting to give new life their devices, they flash them themselves, but unfortunately, this is not always successful. Problems arise with loading the system, options, up to a complete refusal to start in Recovery mode. Is it possible to improve the situation?
The main problems that arise after the firmware
Unlike iOS Android platform is open, so quite often fixing an error is easier than it seems at first glance. In each case, the reasons and solutions are different. There is no single panacea for all situations, so they need to be considered separately.
The device does not turn on
Sometimes after flashing the device the device does not want to turn on because the battery is low. Therefore, before you start flashing, you need to make sure that your phone or tablet has enough charge. If the gadget does not turn on, but the PC recognizes it, it would be logical to recharge it first.
If the device does not turn on, but can boot into recovery mode, you need to take advantage of this chance. How to restore your phone system using Recovery Mode, will be discussed in detail below.
Won't turn on or charge
If the device does not turn on and does not want to be charged via USB, you can try to charge the battery outside the phone, that is, using the so-called frog.
"Frog" allows you to charge batteries separately from devices, and it does not matter what manufacturer your smartphone is from.
If it turns out that the problem is not the battery, but the device is recognized on the PC, you need to flash the phone again. It is better to contact a service center, but you can do this at home.
If it's still on your phone previous version firmware, it is recommended to install it. If it is not there, the right solution would be to download the file you are looking for from the manufacturer’s website, and not from a third-party web page. The firmware must necessarily match the device model.
The file must be uploaded to the root folder MicroSD cards and start installation using Recovery mode. To start the mode, press the power and volume buttons simultaneously. For different models phone, this combination may differ. If this option doesn't work, you can try pressing Home key and the same volume button.
Recovery using standard ADB tools
If the smartphone does not support SD cards, then you can use ADB commands. This method is also suitable for the case when the device constantly reboots. The procedure is carried out as follows.
The device constantly reboots
With constant spontaneous rebooting, control over the phone is lost. To return it, you must first check the condition of the battery, since often the problem occurs due to its malfunction. If the battery is not swollen, you need to reset the settings to factory settings using Recovery Mode or in the settings themselves. More details about this are written below in the sections about the black screen and the slowness of the phone.
The device freezes on the splash screen
The problem is that the flashed phone starts to launch, but hangs on the logo. Then everything goes out and the user is left with nothing. This problem is called bootloop. The reason is the installation of firmware that is not suitable for a smartphone or tablet. Another option is unsuccessful replacement of files in system partition OS. The device is trying to start something that constantly reboots system memory. It is logical that device failure is inevitable.
The reason why a smartphone freezes is usually the installation of incompatible firmware or unsuccessful replacement of system files
Touch screen stopped working
If touch screen stopped working, you need to immediately try to enter Recovery Mode. If the phone boots in this mode and the user has a backup of the data, rollback to the old version. detailed instructions in the next section.
Just a black screen
If the phone does not boot and even the manufacturer’s logo does not appear, but the phone enters recovery mode, it is obvious that you need to try to restore the old Android version. If the device does not enter Recovery mode, you need to resort to at least: install a new OS version or custom Recovery via PC and ADB commands.
After successfully completing the described operations, the previous version of Android will return to the device.
Recovery Mode does not work after flashing
If, after flashing the firmware, Recovery Mode does not start, but the smartphone turns on and works, this may be caused by a mismatch between the factory Recovery mode and new version OS. A special recovery platform, for example, CWM (ClockworkMod), can save the situation. The program will help you install it. Rom Manager. There are also other, more complex methods recovery service firmware. For example, if you have a Samsung phone, it is better to use Odin. Many well-known manufacturers create their own special software, as in the case of Acer.
To reflash your device using Rom Manager, you need to obtain Root rights. This can easily be done using another utility, for example Framaroot. When superuser rights are obtained and Rom Manager is loaded, you need to do the following:
After this, the files will begin to download, and then a notification will appear indicating that you need to grant Root rights to the program. Next, the installation of CWM will begin.
The computer stopped seeing the device
First of all, you need to check the functionality of the USB port and install the drivers. If this does not help correct the situation, you can use the following instructions.
- Enable debugging mode by going to settings. For different smartphone models and different versions OS sequence of actions may differ. For example, at Sony Ericsson Xperia Arc on Android based 4.0.4 you need to select the “Developer Features” section in the settings, and then “USB Debugging”.
Go to the “Developer Options” section and enable debugging mode
- Confirm enabling debugging mode by clicking OK.
Click OK to confirm entering debug mode
- Go to settings again and select Xperia.
Find the Xperia item in the settings and open it
- Select "Connection".
Select "Connection" - this is last line on the menu
- Click on “USB Mode” and select “Media Transfer Mode”.
Select a media transfer mode - your computer and mobile device can share files
After these manipulations, the smartphone should be detected correctly on the PC again.
No sound on the device
The problem indicates that the custom firmware is not compatible with the device. The solution is to reflash the device again, but with a different version. You need to download the firmware file to removable card and replace the version using Recovery Mode.
However, first you can try resetting your phone to factory settings. This method is described below in the section on combating decreased device performance.
"Invalid IMEI" message after flashing
The notification means that the IMEI was erased or changed during the firmware update. There may be two reasons: violation of the firmware procedure or installation of a custom version poor quality from an unreliable developer (the version lacks the appropriate functionality for IMEI).
First you need to determine whether the code was actually erased. To do this, go to dialing mode and enter *#06#. A window will appear with IMEI number, which needs to be checked against a series of numbers written on the device box. If they do not match, this means that the IMEI has been erased.
To check the IMEI code stored in the device memory, you need to enter *#06# in dialing mode
In this case, you must manually enter the code to restore the GSM connection. After this, the phone will be able to make calls and send messages.
How to enter IMEI manually
There are at least two ways to change a worn-out IMEI to the correct one in the Android OS. The first of them is to enter the IMEI in the phone’s engineering menu.
On some phones, after pressing the specified button, the message “This command is not allowed in UserBuilld” may pop up. Nothing wrong with that. Just in the line you entered, place the cursor after the “+” symbol, add a space and apply the settings.
To restore the IMEI for the second SIM card (if you have one), you will need to close engineering menu, repeat all the above steps, but instead of EGMR=1.7, enter EGMR=1.10, and indicate the IMEI for the second SIM card in quotes.
After this, you need to restart the device. IMEI codes will be rewritten, and the GSM module will work again.
Change or generate new IMEI using Chamelephon application
The second method is to install IMEI through special software. It is simpler than the first one, but requires Root rights:
Video: how to change IMEI code
The device does not see the GSM network and does not connect to Wi-Fi
If the phone does not detect any GSM network, it means there is a problem with the IMEI code. How to fix this problem was described in the previous section.
Does not obtain an IP address and does not identify the network
Problem connecting to Wi-Fi router may manifest itself in different ways. For example, the device does not connect to certain access points and constantly displays “Obtaining an IP address” or “Identification problem.” In the second case, you just need to re-enter the password, since, most likely, it was damaged when updating the device.
If the saved password is the password for the point Wi-Fi access was damaged during flashing, just enter it again
In the case of the message “Obtaining an IP address” in an effective way The solution to the problem will be to temporarily remove the network.
Connects to the access point, but does not load pages
The essence of the following variant of the problem with connecting to Wi-Fi: the device has successfully connected to the required access point, but the pages do not load. The reason must be looked for in the proxy server settings.
Another reason: the date was lost during the update. You can check it in the “Date and Time” settings item. It may have changed at the firmware release date.
Can't see home access point
If your home access point is not in the list available networks, it means that new firmware changed the broadcast frequency to mobile device. In this case, you need to change the settings on the router. Next instructions will help troubleshoot the problem.
This procedure is only available if we are talking about home and not public network. If nothing works, it makes sense to reset the settings on the device. This will help decide system error, which often appears when merging existing version with the new one.
If the problem still does not go away, the problem is in the firmware itself. You should sacrifice the update and reset your device before previous version or install custom firmware.
Video: setting up a home router
The device is slow or glitchy
Users often notice to their surprise that after flashing the device began to work even slower, which is exactly what they wanted to get rid of by updating the OS. Clearing cache and reinstallation applications will not give noticeable results. An effective solution will reset your phone or tablet, or Hard Reset. This is done in the “Settings” menu - “ Backup and reset" - "Reset phone settings".
It is important to note that after a reset, all information will be erased: contacts, photos, videos, settings and applications. Thus, it is advisable to backup your data if necessary by checking the “Backup” and “Auto-Recovery” checkboxes. The latter is needed to reinstall applications and restore settings and data.
Photo gallery: how to do a Hard Reset on Android
Click "Backup and reset" in your phone settings 
Select the last item - “ Master reset»
Click on “Reset phone settings”
Lost internal memory
After updating to a new OS version, the phone may refuse to recognize its own internal memory. The supposed reason is a bug in the firmware version or a mismatch between the phone parameters and the custom firmware. The problem can be resolved by resetting the phone to factory settings (the Hard Reset procedure described in the previous section of the article).
Flashing a phone or tablet is an activity for those who are tech-savvy. For an ordinary user this will most likely be difficult - it is better to contact a service center knowledgeable people. However, if you have studied a lot of instructions, read a lot of information and still decide to independent firmware, you should consider a few more points before carrying out this difficult procedure.
It is recommended to flash the device only to people knowledgeable in this topic. This doesn't mean that regular user, strictly following reliable instructions, will not be able to solve the problem. However, there is a risk of problems occurring - both serious and not so serious. There is no single panacea to solve all problems; each malfunction has its own method of elimination.
If problems arise with a wet gadget, do not connect it to the mains and stop pressing the buttons. as soon as possible and only then follow the advice in this article.
If you are sure that the inside of the smartphone is dry, feel free to continue.
1. Force restart your device
Your phone may be turned on but just frozen. In this case, the screen may be dark and not respond to any actions. So first try restarting your device using the hardware keys.
How to Force Restart iPhone
On iPhone SE, iPhone 6s, iPhone 6s Plus, and older models, hold the Home key and the top (or side) button for 10 seconds or more until the Apple logo appears.
On iPhone 7 or iPhone 7 Plus, hold down the Side key along with the Volume Down button for 10 seconds or more until you see Apple logo.
On an iPhone 8 or iPhone 8 Plus, hold and immediately release the volume up key and then the volume down key. After that, press and hold the Side button until the Apple logo appears.
How to force restart your Android smartphone
Press the Power button and Volume Down key at the same time and hold them for 10-15 seconds. If successful, the device will reboot automatically or display a menu on the screen in which you will need to select the restart command.
Some Android smartphones can reboot using other buttons. If the device does not respond, search the Internet for a key combination to restart your particular model.
2. Take out the battery and put it back
If your phone has removable battery, remove the cover and remove the battery from the device. Wait at least 30 seconds and put the battery back. Then try turning on your phone in the usual way- using the power button.
3. Put your phone on charge
Connect your phone to a power outlet using the original charger. If the charging indicator does not appear on the display within an hour and you cannot turn on the device, check the integrity and cleanliness of the connector, as well as the condition of the power cable and adapter. If possible, try different outlets, replace the cable and/or adapter.
4. Reset the device to factory settings
If after trying to turn on the screen the screen lights up, but the device does not boot properly, try restoring the factory settings using the hardware buttons.
During a system reset, you may lose personal data that was not synchronized with the server. Don't do this if you're afraid of erasing important information.
How to restore original settings on iPhone
Connect your phone to your computer using a cable and launch iTunes. Then force restart iPhone(see point 1). When you see the Apple logo, continue to hold the buttons until recovery mode appears on the smartphone screen.
After this, a window with further instructions. Click "Update" and follow the system prompts.
iTunes will download the necessary software for your phone. If this process takes more than 15 minutes, the iPhone may exit recovery mode. In this case, press the buttons again forced restart and hold them until the device returns to this mode.
If the update works, the phone can turn on without resetting the system. If not, then in the iTunes window, click "Restore" to restore the factory settings.
How to restore original settings on an Android smartphone
Make sure your smartphone is turned off and try the following combinations to reset:
- Volume up key + power button;
- Volume down key + power button;
- Volume down key + Volume up key + Power button;
- Volume Down key + Power button + Home key.
You need to press all the keys at the same time and hold them for about 10–15 seconds. After this, a special menu will appear on the screen, in which you should select the Recovery item, and then the Wipe data / factory reset command. If you don’t see this command in Recovery mode, hold down the power button and momentarily press the volume up key.
After these steps, the smartphone should return to its original settings within a few minutes. If none of the key combinations work or you don't find the necessary commands V service menu, look for reset instructions for your device model.