How to adjust the sensitivity of the sensor on android 5.1. Screen calibration on Android: how to set up the sensor yourself

Sensor calibration on Android - adjusting the sensitivity of the screen of a tablet or smartphone Many owners of Android devices consider the sensitivity of the sensor to be a pain point of their gadgets. It happens that the screen of a phone or tablet reacts incorrectly to pressing. For example, the user presses the bottom left of the screen, but the sensor interprets this as a tap in the upper right corner. But the problem that has emerged is not at all a reason for despondency and an urgent trip to the service. It is entirely possible to try to "curb" your sensor at home by applying screen calibration. What is calibration Screen calibration (aka: sensor calibration) is a display setting, the purpose of which is to optimize performance and improve sensor response to pressing and touching with fingers or a stylus. And although the calibration of sensors on Android is generally not necessary, it is recommended for all users of devices, both with resistive and capacitive touch displays. It is advisable to calibrate resistive screens immediately after purchasing the device. With a capacitive sensor, the situation is somewhat different, as it is possible to check if calibration is necessary, or if the display will work clearly without such an operation. To do this, you need to remove the film from the gadget screen, wipe it with a damp cloth (preferably a special one), and then check the sensor response. The best way to check is typing a text message. If frequent typos appear during typing, this is a sign of the need to calibrate the touchscreen. It should also be noted that it is quite possible that this procedure will have to be done more than once. Before proceeding with the screen calibration procedure on Android, you need to find out what caused the sensor to malfunction. It is quite possible that the pie eaten with tea left you a reminder of yourself in the form of traces left on the screen when answering an urgent call. The proximity sensor or Air Gesture function is not working properly. Using custom (not official) firmware. Installing apps from dubious sources. The device has been dropped, hit, or wet. Touchscreen replacement, etc. As we well know, it is necessary to eliminate the cause, not the effect. It is clear that if your smartphone has a “left” firmware that caused the failure, you can calibrate the sensor to the “carrot pen”, only here, alas, the desired result will not be achieved in this case. Nevertheless, even if the device does not need calibration, it will not hurt its owner to know the intricacies of setting the touchscreen, since this is a fairly simple manipulation that does not require much time, and even more so a huge layer of knowledge. How to calibrate the sensor on Android To calibrate the screen of any device running on the Android operating system, you can use special programs and utilities, of which there are a sufficient number, and absolutely free. You can also access the standard services located in the device menu. Manual setting Here it is necessary to explain that the setting options, including the screen sensitivity, vary greatly depending on the model of your gadget, and it is quite possible that it will not work in your case. The fact is that manufacturers of mobile devices over the standard settings of the Android OS, as it were, install their own shell, while changing (or completely eliminating) the possibility of a particular setting. The calibration method for devices with standard settings is described below: Go to the settings menu. Select "Phone settings". Go to the "Calibration" menu, which will open a window in the form of a cross-target with a dot inside. Click on the center of the target three times. Calibration is completed. Next, you should check the sensor by the manipulations indicated earlier. If these steps are not relevant for you, then you need to check on the manufacturer’s website exactly how you can calibrate your particular device, or use a special application (read about this method below). Using special software At the moment, there are countless utilities and programs that help you set up the touchscreen of your Android device. Of the recommended programs that have really helped many users, the following programs can be noted: Touchscreen Calibration - a simple and free tool that can help you quickly and easily calibrate the sensor. Step by step: Download the application, open it, press the "Calibration" button: Then, start the calibration process by clicking on the gray field on the screen: After that, in the gray field, execute the commands that appear in the green squares. Unfortunately, the utility is not Russified, but what and how to do is shown quite clearly. The principle of operation in all existing applications is the same (enter the application - perform the proposed actions - check the result), so it makes no sense to describe how this is done in one case or another, so we will just mention the most popular utilities. In addition to the already familiar Touchscreen Calibration, these are SGS Touchscreen Booster, Touch Accuracy, and Display Calibration to improve display shades. Choose a tool that is convenient for you and solve your problem quickly and easily. Important: some programs will require ROOT rights. If the calibration did not help If the described methods did not bring results and the screen continues to respond incorrectly to pressing - most likely, the problem lies in a factory defect that occurred during the assembly of the device, and a serious breakdown that cannot be repaired at home cannot be ruled out. In such a situation, you should contact the service center for the help of a qualified technician. Considering that the main element of the vast majority of Android smartphones and tablets are screens on which even the buttons work with the help of a sensor, poor display settings can turn the use of the device into real torture. Of course, you can immediately give the device to a service center, however, having figured out the reason, in some cases, by independently applying the touchscreen calibration, you can try to do it on your own. This simple, fast and absolutely energy-saving procedure will most likely help optimize the performance of the display, and at the same time improve the usability of the entire device.

Actions that involve calibration include adjusting the touch screen so that the device correctly executes certain commands by touching the sensor with your fingers. Of course, the device may well work without this procedure, but the owner should prepare for the fact that he will have to observe all sorts of failures when working with the sensor. Next, we will consider in detail the main points that are associated with calibration and the methods that allow this procedure to be carried out.

Why calibration is necessary and what it can fix

Calibrating the screen of an Android device is most often necessary after a phone has been dropped or other mechanical damage has occurred. It is also necessary if the display had liquid contact- this, as a rule, violates the susceptibility of the electrodes, despite the fact that most gadgets are equipped with capacitive screens. They have replaced resistive ones, and are more reliable and more sensitive.

For what reasons debugging required:

• the sensor does not correctly recognize commands. In this case, for example, a tap works fine, but a pinch or a swipe can work periodically;
• The touchscreen doesn't always work. Actions may not be recognized and devices may ignore them;
• incorrect definition of commands. In this case, you can specify the letter "A", and "B" will be displayed instead;
• the waiting time for a response to an action being performed has increased significantly;
• Some graphics applications may experience interruption in selection of certain areas of the image or lines being drawn.

Consider when such problems occur:

• phone is used in for a long time. This is the main reason why the sensitivity of the sensor decreases, it is associated with physical factors. Also, this in detail directly depends on what quality the touchscreen is installed. However, it is important to note the fact that such failures can occur due to prolonged inactivity;
• sensor initially configured incorrectly. To avoid problems, we strongly recommend debugging immediately after purchasing the phone. Also, after replacing the elements of the touchscreen, calibration is required;
• viral activity and changing system settings. In some cases, incorrect operation is caused by virus activity or the user accidentally set the sensitivity settings in the phone settings (some gadgets provide this function);
• mechanical damage screen. Scuffs, scratches, improper application of a protective film, drops and a broken display significantly reduce the sensitivity of the sensor. Screen contamination also applies to this item.

Calibration using Android

You can debug using the standard tools of the Android operating system:

Optimization using the engineering menu

The engineering menu is a hidden section for flexible configuration and optimization of the smartphone, in order to use it you need to:

Specialized Applications

power bubble

Free app for screen calibration of android device. Distinctive features of Power Bubble is an intuitive interface, easy navigation, work on tablets and phones.

Instruction:

Important! On some devices, the program may be unstable or not respond to commands at all.

TouchScreenTune

A free program that allows you to optimize the sensitivity of your smartphone screen. It also adjusts the sensitivity of the handwriting sensor on some devices, such as the Samsung Galaxy Tab 10.1 and Asus Transformer. It should be noted that in order to use need superuser rights. Among other things, TouchScreenTune will help you set the settings for ignoring touches. The only disadvantage of the program is that there is no Russian-language interface and there are failures during use.

Clinometer

A free application for Android that allows you to calibrate the accelerometer. Also Clinometer can up to several degrees determine the angle to the surface.

Instruction:

Touchscreen Calibration

A free Android application that allows you to calibrate and adjust the sensor, debug sensitivity and response time.

Instruction:

Quick TuneUp

Free application for sensor calibration on android devices. With Quick TuneUp, you can also optimize your smartphone's battery and built-in memory.

Instruction:

Display calibration

A small utility that allows you to optimize and adjust the sensitivity of the sensor. Display calibration has an intuitive interface and a set of settings on display debugging.

Instruction:

Calibration via computer

If the sensor does not respond to commands or failures occur after calibration, then in this case it will be necessary to perform optimization via a computer. To do this, we need to install the program - MSP RemoteAlignment.

Utility features:

• calibration without installing software on the phone;
• saving the procedure log on the computer;
• debugging the touchscreen and saving the log with the results.

After the software has been installed, we proceed to the process itself:

• run the program and a window will appear on the screen, where several tabs will be presented;
• then connect the phone to the computer using USB;
• if you need to perform automatic debugging, press the "Skip" button, and to carry out all actions manually " Alignment»;
• after the process is completed, you can save the log by clicking the " Retrive».

How to check the touchscreen for performance

After the calibration, you need to make sure that the touchscreen is working, you can do this as follows:

• go to the Play Market and download the Screen Touch Test utility;
• install it on your device and run it;
• a field will appear on the main screen where you need to draw a rectangle right around the perimeter of the screen;
• when the sensor works correctly, the line will be smooth and clear, without breaks. If deviations are observed, the line is interrupted, various kinds of dots appear, this indicates that the touchscreen is unstable.

A similar function is available in the standard settings of Android.

Checking and adjusting the sensitivity

Additionally, you can use special features and independently adjust the sensitivity of the sensor:

How to Calibrate the Screen on an iPhone

On iPhone, you cannot perform the usual calibration that is done on Android. There are no special programs for this, and there is no advanced functionality in the settings. Therefore, one can only auto brightness sensor optimization. You can do this in the following way:

• open "Settings";
• looking for a room where the light is the dimmest;
• in the list of options, select the tab " Display and brightness»;
• deactivate the option " Automatic brightness»;
• a slider will appear with which you need to adjust the brightness of the screen, reduce the parameter to the very minimum;
• then reactivate the parameter " Automatic brightness” and the display becomes much brighter. The sensor will correct this option and move the slider to the optimal position.

Proximity sensor calibration

Proximity sensor - is a proximity sensor. This is a small device that reacts to the physical proximity of the smartphone to any object. It is thanks to him that the screen turns off during a telephone conversation.

Instruction:

Program for optimizing the sensor "Proximity sensor: Reset":

• download the program from the application store;
• press " Calibrate Sensor»;
• close the upper part of the device (the location of the sensor) with your hand and click "Next";
• remove your hand from the sensor and click "Next" again;
• then tap "Calibrate" and confirm the actions " Confirm". We reboot the device.

Possible Calibration Issues

Touchscreen optimization may not help in the following cases:

• in the first place is hardware failure phone. One of the options is damage to the screen with cracks that have arisen in the process. In this case, calibration will no longer help, you must contact the service center to replace the sensor;
• manufacturing defects. In some cases, we can talk about a factory marriage. The touch panel may not fit snugly against the glass, somewhere it comes close to it, somewhere not. In this case, spontaneous operation or lack of response is observed in some areas of the screen. Here you will also have to contact the service center.
• Incorrect repair. After replacing the touchscreen, the sensor may not work or work poorly. This also includes the mirror work of the touchscreen, when all actions and touches are mirrored on the display. It is not possible to determine the breakdown yourself here. It is better to take the device to the service center that carried out the repair. Usually in such cases the sensor is connected incorrectly.

Malfunctions in the operation of the sensor of an Android-based smartphone are a common problem for not the most accurate users. It is enough to drop the phone once, spill something on it or sit down without noticing it, and there is a significant risk of damaging the touchscreen. If you damage it, you will no longer be able to use the screen normally, type a message or simply answer a call, it will no longer be possible. Such a smartphone is absolutely useless. That is why it is necessary to calibrate the screen in order to correct all problems. However, not all so simple.

To begin with, it is worth ascertaining the sensitivity of the sensor as much as possible. To do this, remove the protective film, if any, and try to type some letter.

If touch recognition is incorrect, for example, instead of one letter, a completely different one is typed, then screen calibration is simply inevitable. This can be done in different ways, depending on the phone model, brand, and version of the Android operating system.

Today we will look at all kinds of calibration methods on different devices, you can try everything, depending on the situation.

How to do it through the settings of the device itself?

Due to the fact that problems with calibration are a common problem for users, the developers of OC Android have added the ability to carry it out without installing unnecessary applications.

In order to go directly to the settings, you need to open general "Settings", go to the section "Display", and there we find an item with the name "Screen Calibration". If there is no such item, then find a similar one, the name may differ on different devices and versions of the Android OS.

The calibration process itself is a small test where you need to touch the screen in different places. After completion, the device will automatically remember the touches, after which the calibration can be considered completed.

Important. Upon completion of all actions, you should make sure the accuracy of the touchscreen, depending on the result, the calibration can be done again.

We carry out the procedure through the engineering menu

If you are not very versed in smartphones, then you probably hear about this setting mode for the first time.

The engineering menu is a storehouse of various configurations for your Android. Once in it, you can access all available configurations. This mode is suitable for users who like to fully customize a particular device for themselves.

So, what is needed in order to get into this very menu? First you need to open the dialing window, and enter the following combinations there:

• * # * # 3656633 # * # *
• * # 15963 # *
• * # * # 4636 * # *

Which combination is suitable depends on the smartphone itself.

If suddenly nothing happened, then in order not to suffer with input, you can simply download a special application from, it is called MTK Engineering Mode Start. With it, you can perform various manipulations with the phone.

Closer to the point. Here we are in the engineering menu. Now you need to do the following:

Applications

There are many programs that are designed specifically for sensor calibration. There are both paid and free versions. Some of them require Root rights on the device. We will tell you about several such applications below.

To use this program, you need root rights, so before proceeding with the settings, we should take care of this. How to get root rights, we have already told on the pages of our site, information about this is in the public domain.

Primarily designed for tablets. The procedure is carried out through the same test, but in addition, it can significantly increase not only the accuracy of touch recognition, but also improve overall performance, as well as efficiency. This program is indispensable for some Android tablets with handwriting or drawing function.

The interface is designed in such a way that you can figure it out on an intuitive level, there are no complicated settings, the most ordinary user can figure it out.

It is capable not only of calibrating the touchscreen, but also of measuring the angle of inclination, the height of the inclination, as well as the inclination of the object relative to gravity.

Like any device, the phone sooner or later starts to break down and fail. There are a large number of problems that can occur on Android. One of them is the inadequate response of the screen to pressing. If the sensor of your Android device does not correctly perform the tasks assigned to it, then most likely the screen calibration settings on the phone have gone wrong.

What does "screen calibration" mean on an Android smartphone or tablet

Screen calibration is the device's touch screen settings. That is, if you swiped your finger or stylus over the display, it should reflect your movements with great accuracy. In the event that your actions and what ultimately happened on the screen differ, you should calibrate the device again. Calibration-related problems may occur when replacing the screen, changing device settings, or due to software and physical damage to the device.

Android screen calibration - step by step

There are several ways to calibrate Android devices. Some lead through programs that were originally installed in the phone, others will require downloading special applications from the Play Market. Let's start with those that require as little action as possible.

Via device settings

Since users often experience problems with calibration, the developers have added the ability to calibrate the device through the device settings:

Android touchscreen calibration through the engineering menu

On Android devices, there is a special menu, thanks to which you can do many things that are not available in normal mode.

Via Touchscreen Calibration App

In the Play Market, you can find many applications responsible for screen calibration, one of them is Touchscreen Calibration.

Through the Quick TuneUp App

This application performs the same tasks as the previous ones, but in a different way.

Video: how to increase or decrease the sensitivity of the sensor

How to set up an accelerometer or G-sensor

Also on all modern devices there is an accelerometer, which determines the position of the phone relative to a flat horizontal and vertical surface. This feature is used in many games, most often racing, when you control the car by turning the phone, and in some other applications.

Through a special application - GPS Status & Toolbox

You can calibrate the G-sensor using a free application from the Play Market:

Via Engineering Menu

There is a second way to calibrate the G-sensor - through the Engineering Menu:

Video: setting up a G-sensor on Android

What to do if the sensor works spontaneously

Sometimes it happens that the screen at some points starts to be pressed by itself. This can happen if the touch glass has been damaged, causing it to adhere too tightly to the display in certain places. In this case, you need to carry the device to the service and ask to replace the glass with a new one. Touch screens are divided into two types:

• Resistive - these are sensors that respond to changes in pressure, that is, they work when pressed. On such glass, you can work with a fingernail, stylus and other items.
• Capacitive - These are sensors that respond only to touch with your fingers.

If the screen no longer accurately displays what you want to do, then it's time to re-calibrate the display. If the phone reacts incorrectly to a change in its location in space, then it is worth calibrating the G-sensor. And only if all the previous settings did not help, then you should think about changing the touch glass, which could break or be scratched.

fans-android.com

How to increase touch sensitivity on Android?

Android smartphone users often complain about poor screen touch sensitivity, even on high-end mobile devices.

There are several reasons why the touch screen of a smartphone has become unresponsive to pressing. One of the reasons is in the hardware, while the other is in the software. If the problem is in the hardware, then repair and replacement of the touch panel is necessary. But, if the cause of poor sensitivity is related to the software, then various patches, settings and calibrations will return the touch screen to its previous sensitivity without the help of a service center.

We have prepared some tips and tricks to help you increase the sensitivity of your Android touch screen.

Software and firmware update

Responsible manufacturers often release updates for their smartphones that improve performance and fix various bugs. Therefore, as soon as you find poor touch screen sensitivity, you should check for an update, and if there is one, install it. There are chances that the Android sensor sensitivity issue will be fixed.

Touch screen patches and fixes

If the manufacturer of your smartphone does not release updates, you are left to rely on your own strength. In other words, look for new updates, fixes, patches, fixes, and more on specialized forums such as w3bsit3-dns.com or XDA Developers.

Calibration

Some smartphones have a touch screen calibration feature. If, some time after purchasing your smartphone, you notice that the display has become less responsive to pressing, you should calibrate the touch panel. Most often, this function is located in the smartphone settings.

Delete apps

If you have an entry-level or mid-range smartphone, you must understand that it will not work at lightning speed. However, many people forget about it and install a huge number of new applications. Many applications run in the background, thereby reducing the performance of the smartphone.

To increase your Android's touch sensitivity, try uninstalling the apps you rarely use.

Clean the touch screen

If your smartphone's screen is dirty with fingerprints, dust, or any other sticky material, you should wash it thoroughly.

Use protective film or glass

To date, a wide range of protective films and glasses for your smartphone is available. What's more, many new smartphones come with a pre-applied screen protector. Use this opportunity to increase the touch sensitivity on Android.

Avoid bumps and drops of your smartphone

As obvious as it may sound, don't hammer nails with your smartphone. They are not designed for this. If you carry a large smartphone in the pocket of your skinny jeans, take it out before you sit down. Also, try not to drop or throw your smartphone on the floor.

Gloves

Most modern high-end smartphones are designed to be operated with gloves on. A useful option for cold countries, like ours, when seals are a mandatory attribute of every person on the street.

Not surprisingly, manufacturers are trying to make smartphone touchscreens compatible with gloves. Moreover, some smartphones, such as the Samsung Galaxy S5, have a special function for working with gloves. To activate it, go to Settings - Display and select the option "Increase sensor sensitivity" at the very bottom.

androidphones.ru

Screen sensor calibration on Android: why and how to do it?

If your Android phone's screen stops responding to touch after being dropped, submerged in water, or due to a technical problem, you may need to calibrate the screen. Well, in case of a problem in determining the position of the phone in space, it will be necessary to adjust the accelerometer.

What is screen calibration

Screen calibration is the fine tuning of a device's sensor. It may be required if the screen has partially or completely stopped responding to pressing. And it is also possible that the sensor is triggered in the wrong place that you touch with your finger. In any of these cases, calibration should help, unless, of course, the screen is damaged. Also, calibration may be required after replacing the screen of the device.

How to calibrate the screen

There are different ways to calibrate the screen of an Android device. It will be useful to consider each of them.

Screen calibration through device settings

It is possible to calibrate without installing third-party applications. For this:

Also worth knowing:

Unfortunately, some Android devices do not have a built-in touch screen calibration feature. In this case, it can be carried out by other methods.

Screen sensor calibration through the engineering menu

The engineering menu is a menu of hidden phone settings. They are intended only for the most experienced users, as they offer quite detailed phone customization. If you are not careful, you can harm your device. You make all changes in the engineering menu at your own peril and risk.

The way to get into the engineering menu also differs depending on the specific phone model, but usually this requires entering a special combination of characters. Search for your phone model and type in the appropriate command. For example, for Samsung devices, this could be *#*#8255#*#*.

After you are in the engineering menu, you must select the "Touch Screen" item.

Select the "Touch Screen" section

It is in this section that you can check the current sensitivity, as well as make detailed settings for the screen of your device and how it reacts to pressing.

Android screen sensor calibration via computer

If the screen of your phone does not work at all, or after the calibration there was a serious error and now the sensor does not respond to pressing, calibrating through a computer can save the phone and save time from going to the service center. To make it, you will need to install the MSP RemoteAlignment program.

By installing this program and following the instructions, you will be able to do the following:

• calibrate your device from a PC without having to press anything from your phone;
• save the results of the calibration to the computer;
• “Align” the picture relative to the device screen and also save these settings.

Managing this program is very easy. Pressing the Skip button will automatically calibrate, skipping the rest of the steps. The Retrive button will load previously saved calibration results, while the Alignment button will enable manual calibration on your phone.

Pressing the Skip button will start screen calibration

Android Screen Sensor Calibration Apps

If you can't calibrate your screen without using a third-party app, or if you want more customization and control over your screen's touch, it's worth using apps designed for this purpose.

Calibration apps can help, but won't work miracles. They will fit as a last resort before contacting a service center if other screen calibration methods have already been tried.

Touchscreen Calibration App

The Touchscreen Calibration app is a fairly simple solution and has a very minimalist interface. After you press the only active Calibrate key, the sensor setup will begin directly.

Press the Calibrate button to start the calibration process

It will be necessary to do some very simple actions like swipe the screen or double tap.

Swipe is a special gesture when you put your finger on the screen of a smartphone or tablet and move it in the desired direction across the screen.

As soon as you complete all the indicated steps, the program will evaluate the accuracy and finish the calibration. This is really a very simple application that can give you everything you need if your device does not have a calibration function.

Touchscreen Calibration is a very easy to use app

Display Calibration app

The Display Calibration app works in a completely different way. You don't have to manually align the sensor. All that is required is to launch the application and set the brightness slider to a certain position. Thus, the center of the device screen and other coordinates will be determined, from which the program will be repelled. Next, you need to press the Calibrate button, which is the only one on the screen. After a few seconds, the calibration will be completed.

How Display Calibration works is extremely simple.

What else can be done to adjust the sensor

If you have tried all the methods available on your version of the device and have not achieved a result, all that remains is to contact the service center. After all, the problem with the screen may not be in the sensor settings at all, or it may not be solved in such a simple way. At least you will know that you have done everything possible to restore the sensor of your device.

Setting up the accelerometer of an android OS phone

The phone's accelerometer determines its position in space, or the applied acceleration when it moves. It is essential for the following device functions:

• changing page orientation when turning the phone;
• calculation of the distance traveled in case of using the device as a pedometer;
• determining the position of the phone in various applications;
• control the phone by wiggle or tilt.

You will not be able to set up a call acceptance with a gesture, it is comfortable to use the browser and other phone functions if the accelerometer settings have gone wrong. In this case, it is necessary to calibrate it, which will help special applications for this.

Accelerometer allows you to determine the angle relative to the position of the phone

GPS Status & Toolbox app

Let's analyze in detail how to calibrate the accelerometer through the GPS Status & Toolbox application. After launching the application, do the following:

Video: Accelerometer Calibration Using the GPS Status & Toolbox App

Clinometer App

The Clinometer program can determine the angle to the surface with an accuracy of ten degrees. But we are interested in it for another reason - with the help of it you can calibrate the accelerometer, because it is with its help that the angle is determined. This program is simpler than the previous one, but quite satisfies our requirements.

Clinometer has everything you need to calibrate an accelerometer

Unforeseen problems may occur during the screen or accelerometer calibration procedure. However, they will be easy to deal with if you follow the advice.

Root rights required

If you want to calibrate the device through the engineering menu, you may not be able to do anything without root rights on the device. Root rights provide full access to the device settings and are needed just to protect inexperienced users from dangerous changes. But getting them is not so difficult and, in fact, there are two options:

• On the Internet, you can find many programs that will easily allow you to obtain the necessary rights. All of them are extremely easy to use and will give you access in one click, so it remains only to give the names of some of them. Programs such as Universal AndRoot, Unlock Root, z4root and others can help you;
• the second method will require you to install the modified firmware on your phone. In many custom firmware, root rights are initially open, or they open very simply.

After this installation, you should not have problems accessing the engineering menu and you will be able to calibrate the device.

Root programs are easy to use

The screen sensor works by itself, involuntarily

The screen self-response problem usually points directly to problems with the device's sensor itself. If the calibration did not help, you can try the following before contacting a service center:

• install a protective film between the sensor and the display of the device;
• make sure that there is no physical distortion of the sensor of the device.

If all this does not help, then it remains only to replace the sensor.

There are many ways to calibrate your device's touch screen, and there are apps that you can use to adjust the accelerometer. Now you can set up your device yourself and solve your problem with the screen or gyroscope.

dadaviz.ru

Sensor calibration on Android - adjust the sensitivity of the screen of a tablet or smartphone

Many owners of Android devices consider the sensitivity of the sensor to be the pain point of their gadgets. It happens that the screen of a phone or tablet reacts incorrectly to pressing. For example, the user presses the bottom left of the screen, but the sensor interprets this as a tap in the upper right corner.

But the problem that has emerged is not at all a reason for despondency and an urgent trip to the service. It is entirely possible to try to "curb" your sensor at home by applying screen calibration.

What is calibration

Screen calibration (aka: sensor calibration) is a display setting, the purpose of which is to optimize performance and improve sensor response to pressing and touching with fingers or a stylus.

And although sensor calibration on Android is generally not necessary, it is recommended for all users of devices with both resistive and capacitive touch displays. It is advisable to calibrate resistive screens immediately after purchasing the device. With a capacitive sensor, the situation is somewhat different, as it is possible to check if calibration is necessary, or if the display will work clearly without such an operation.

To do this, you need to remove the film from the gadget screen, wipe it with a damp cloth (preferably a special one), and then check the sensor response. The best way to check is typing a text message. If frequent typos appear during typing, this is a sign of the need to calibrate the touchscreen. It should also be noted that it is quite possible that this procedure will have to be done more than once.

Before proceeding with the screen calibration procedure on Android, you need to find out what caused the sensor to malfunction.

• It is quite possible that the pie eaten with tea left you a reminder of yourself in the form of traces left on the screen when answering an urgent call.
• The proximity sensor or Air Gesture function is not working properly.
• Using custom (not official) firmware.
• Installing apps from dubious sources.
• The device has been dropped, hit, or wet.
• Touchscreen replacement, etc.

As we well know, it is necessary to eliminate the cause, not the effect. It is clear that if your smartphone has a “left” firmware that caused the failure, you can calibrate the sensor to the “carrot pen”, only here, alas, the desired result will not be achieved in this case.

Nevertheless, even if the device does not need calibration, it will not hurt its owner to know the intricacies of setting the touchscreen, since this is a fairly simple manipulation that does not require much time, and even more so a huge layer of knowledge.

How to calibrate the sensor on Android

To calibrate the screen of any device running on the Android operating system, you can use special programs and utilities, of which there are a sufficient number, and absolutely free. You can also access the standard services located in the device menu.

Manual setting

Here it is necessary to clarify that the settings, including the sensitivity of the screen, vary greatly depending on the model of your gadget, and it is quite possible that it will not work in your case. The fact is that manufacturers of mobile devices over the standard settings of the Android OS, as it were, install their own shell, while changing (or completely eliminating) the possibility of a particular setting. The calibration method for devices with standard settings is described below:

1. Go to the settings menu.
2. Select "Phone settings".
3. Go to the "Calibration" menu, which will open a window in the form of a target cross with a dot inside
4. Click three times in the center of the target
5. Calibration completed. Next, you should check the sensor by the manipulations indicated earlier.

If these steps are not relevant for you, then you need to check on the manufacturer’s website exactly how you can calibrate your particular device, or use a special application (read about this method below).

The use of special software

At the moment, there are countless utilities and programs that help you customize the touchscreen of your Android device. Of the recommended programs that really helped many users, the following programs can be noted:

Touchscreen Calibration is a simple and free tool that can help you quickly and easily calibrate your sensor. Step by step:

Download the application, open it, press the "Calibration" button:

Then, we start the calibration process by clicking on the gray field on the screen:

After that, in the gray field, we execute the commands that appear in the green squares:

Unfortunately, the utility is not Russified, but what and how to do is shown quite clearly. Just in case, we invite you to watch the video

Sometimes the calibration of the touchscreen or G-sensor sensor “flies” in the tablet. The device begins to incorrectly determine the position of pressing on the screen or orientation in space. Depending on what type of display is used in your device, you can judge whether the situation can be somehow corrected. Finding out which display is in your device is very easy - just read the instructions for it, or look at the manufacturer's website.

Resistive display sensors

Resistive touch screens were the first to appear, and were previously the most widely used. They are still used in some phones and tablets, as well as in the vast majority of car navigators. Now a little theory so that you have an idea what kind of resistive displays they are. Try not to fall asleep while reading.

The device of such a screen is very simple - two plates, solid glass or plastic and flexible plastic, covered with a conductive layer and separated by point microinsulators. When you press on a flexible plastic plate, it bends, and at a certain point on the screen, a short circuit occurs between the plates. The sensor controller measures the resistance of the plates up to this point and determines the coordinates of the pressure. This type of sensor has several drawbacks: low light transmission, fragility, the sensor responds to pressing, not to touch (therefore, you can control it with an ordinary stylus or any other fairly solid object, such as a match), the inability to determine several simultaneous clicks, and also due to due to the peculiarities of production, the parameters of the plates for each sensor may vary slightly, which causes inaccuracies in control.

To adjust the controller of such a sensor, calibration is required. Usually this function is located in the display settings, called sensor calibration or touch screen settings (it may be called differently, but the meaning is the same). Because I have a capacitive screen, I don't have those settings and can't take a screenshot.
After starting the calibration, the setup program will ask you to press several times at certain points on the screen and remember the settings. After that, the sensor readings will be corrected according to these settings, which will ensure an accurate determination of the place of pressing.

Capacitive sensors

There are two main types of such sensors: surface capacitive and projected capacitive. The first ones are quite simple: an alternating voltage is applied to the corners of the sensor conductive plate, and the leakage currents caused by the introduction of an extraneous capacitance (for example, from a finger) are checked. According to the ratio of currents for each corner, you can set the touch point. These sensors do not respond to a regular stylus or a gloved hand. Such sensors are quite rare, do not support multiple simultaneous touches, and also require calibration. Calibration is carried out as for a resistive sensor.

Projection-capacitive sensors, the most common today, have a complex multilayer structure, consisting of a matrix of individual sensors combined into a rectangular structure. You can control multiple simultaneous touches (multi-touch). Such a sensor is sometimes performed directly on the screen glass, which reduces distortion (there is no air gap between the screen and the sensor). The controller is most often structurally integrated with the sensor itself, the parameters of which are known to it and do not require calibration. In many tablet models and rarely in phones, the controller is located on the main board of the device. Most often there are no problems with phones, but in tablets it happens that the same main board is used for screens of different diagonals, and the sensor parameters may vary.

Usually no configuration is required, but sometimes after firmware or software failures, the controller may need to be calibrated. This can be done through the engineering menu (you need to figure out how to get there specifically for your model) or using special programs, such as TouchScreen Tune (available on the Google Play Market). Sometimes the capacitive sensor may not work properly when charging from the interference of a non-original charger. Nothing needs to be calibrated here - the charger flies into the garbage chute.

Accelerometer calibration (G-sensor)

This sensor, also called a gyro sensor or accelerometer, is used to determine the position of the device in space. G-sensor calculates the speeds and rotation angles of the device. The simplest use case is Android's "auto-rotate" feature and controlling games by tilting or turning your phone (tablet). Air mouse remotes also use this sensor. Calibration of the accelerometer is usually not required, many games and programs have the ability to adjust. Another thing is if, after the “curve” firmware, the accelerometer does not work at all or it is difficult to set it up normally. Here the engineering menu will help you, there you can test and calibrate the G-sensor, or install a normal firmware.

• To enter the engineering menu, hold down the volume down button and the power button at the same time, and wait until the menu appears.
• Using the volume up / down buttons, navigate through the menu and select the item test report, and in it - G-Sensor cali.
• Place the tablet on a flat surface and press Do Calibration (20%) until the numbers at the very top take the following form − +0.xxxx +0.xxxx +9.xxxx
• Calibration is completed, press the volume up 2 times, and then - Reboot.

A short video on calibrating the G sensor (accelerometer) using a Chinese tablet as an example

Outcome

In general, first find the reason why your display is behaving inappropriately. Do not rush to calibrate, first understand everything. You may be sharing your lunch with your tablet, leaving greasy marks or jam marks on the screen. Get rid of them carefully. It happens that a person accidentally touches the display with the finger of the hand that holds the tablet, and the sensor works. Just hold it differently.

Following the example of Pontius Pilate, I wash my fingers with which I typed this article and declare that all responsibility in the event of data loss or software failure lies entirely on your conscience.