home › Safety › How to set up a touchscreen on Android. Calibrating the Android phone screen (touchscreen sensor). What is calibration

How to set up a touchscreen on Android. Calibrating the Android phone screen (touchscreen sensor). What is calibration

Application touch screen on mobile devices significantly expanded their functionality and made it possible to get rid of numerous physical buttons that were necessary for entering text and performing other tasks. However, even with so many advantages, the sensor may lose accuracy, which negatively affects the comfortable operation of the device.

Let's look at the concept of calibrating the Android screen and methods for doing it.

Definition of “screen calibration”

Calibration refers to adjusting the touch screen in relation to how it perceives the touch of your fingers or stylus. The procedure is designed to improve the accuracy of determining the point of contact based on certain actions performed by a person.

Will be useful The usual procedure of this kind is carried out by the appearance of circles on the display of the device, which should be clicked. The data obtained allows the system to identify areas that have increased or decreased sensitivity, as well as areas where the touch location does not coincide with the displayed element. Eventually software

regulates deviations from the norm and corrects shortcomings.

Problems with the sensor In a newly purchased device, the sensor is well configured and responds correctly to human touch. Over time, the accuracy of the work deteriorates, errors and inconsistencies appear.

Knowing when to calibrate is easy. It is accompanied by the following problems:
Periodic sensor activation. For example, out of three clicks on the display, two or one were detected. Clearly visible when typing.
Recognition of some types of actions disappears. The touch screen is very functional, it supports multiple simultaneous touches, stretching with fingers, and swiping. A sign of a problem may be incorrect recognition of one of the interaction options.
Incorrect determination of the point of contact. For example, one menu item was selected, and the adjacent one opened.
After interacting with the display, you have to wait quite a long time for a response.
Deterioration of touch recognition when working with a stylus or vice versa - with a finger.

If , then a clear sign will be the interruption of the stripe when drawing a line.

Touch screen calibration will help resolve all of the above issues. To perform the operation, you do not need any special skills or the involvement of a specialist.

Causes of malfunction

The main reason for a situation where calibration is needed is long-term use of the device. On higher quality screens, the procedure is required less often, on lower quality screens – more often.

Prolonged inactivity of a mobile device can also cause malfunctions. Sometimes calibration is necessary immediately after purchase because the initial adjustment was not performed correctly. Changing the touchscreen definitely requires subsequent configuration.

note

An additional reason for calibration could be malicious code that got onto the phone through an unverified application, or a system failure in the firmware itself.

Sometimes the user incorrectly configures the sensitivity settings, which affects touch recognition.

It should be understood that the reasons for the inaccurate operation of the sensor do not always lie in the system. This There may be severe wear on the display, cracks, bubbles under the protective film, etc. Calibration using software methods will not help here; you will have to use other options to solve the problem.

How to calibrate the screen on Android?

Performing display calibration available both using built-in tools operating system, so third party applications. Let's consider each option in more detail.

Mobile device settings

Since calibration is an integral part of using a touchscreen, in many versions of Android developers have implemented the function directly into the settings.

To use this method, you must:

Open the settings of your phone or tablet, go to the “Screen” section.

In the window that opens, find the item “Screen calibration” or similar.

If , then a clear sign will be the interruption of the stripe when drawing a line.

The option may be present in other sections or may be completely absent. If it cannot be detected, you should use other methods presented below.

After starting the procedure, you will need to click on the dots that appear on the display and drag them.
upon completion of the adjustment.

During setup, it is better to place the smartphone on a flat horizontal surface.

Engineering menu

In this hidden section, more serious settings that require certain knowledge are carried out. This method suitable for those who did not find the corresponding item in the regular menu and do not want to install third-party software to carry out the procedure.

To get in engineering menu For subsequent calibration of the Android screen, there are two ways:

Through a special code:
- Open standard application to dial a number.
- Enter a combination of numbers and characters: *#*#3646633#*#* or *#*#4636*#*. There is no need to press the call button after the last character. There are other codes that are suitable for little-known Chinese-made devices. You can find them on thematic forums.

Via the application:
- 1. Visit Play Market and install the MTK Engineering Mode program.
- 2. Launch the application, click on the “Android Settings” button.

After successfully entering the engineering menu, you must execute the following actions:

Open the “Hardware Testing” tab.

Find and click “Sensor”.

From the list in the new window, select “Sensor Calibration”.

In the utility menu, clear old presets by clicking “Clear calibration”.

Select the line “Do calibration (20% tolerance)” to set the maximum sensitivity of the touch screen or “Do calibration (40% tolerance)” to set a lower sensitivity.

Saving the settings is not required; just exit to the desktop by pressing the “Back” button several times.
Reboot the device.

When the operating system will start, inaccuracies in the sensor operation should disappear.

note

The engineering menu method has an advantage over using the corresponding section from the phone settings, so it is recommended to use it if the previous option did not help.

Third Party Applications

The use of third-party software is justified if there is no calibration item in the phone settings or if it is impossible to get into the engineering menu. The procedure will be discussed in detail using the two most effective applications as examples, since they operate using different system and hardware methods.

Instructions for use:

and launch the application.

Press the “CALIBRATE” button.

Perform the following steps step by step: single tap, double tap, long press, swipe (moving your finger to the side), pinch, zoom (touch the screen with two closed fingers and spread them apart).

Close the program window after the “Calibration successful” notification appears.

If using Touchscreen Calibration does not produce noticeable results, your current device may need to use other calibration methods that are used in the app.

The process of working with Quick TuneUp is as follows:

Install and open the application.
Place your phone or tablet on a table or other flat surface.
In the list that opens, select “Display Calibration”.

Wait for the calibration process to complete. In this case, you will not need to perform different types touches, the system itself will determine the current configuration and any inaccuracies. Progress automatic settings will be displayed in a pop-up window.

In this case, the glass does not necessarily have to have deep cracks; sometimes it can simply sag due to wear or other factors. Eliminated

Touch screen calibration on mobile devices with the Android operating system may be required if the touch screen does not correctly recognize touches. Depending on the smartphone manufacturer, the system may have various built-in calibration utilities. You can also use third-party apps to configure the sensor on Android.

Screen calibration on Android using the built-in utility

Standard methods for calibrating the display on smartphones from different manufacturers differ. Typically, configuration is done through engineering or service menu. To call it you need to enter a special code in the Dialer application ( standard program to make calls on Android). The code may consist of numbers, symbols “*” and “#”. The specific combination for a specific phone brand can be clarified in the documentation for the device or on the manufacturer’s official website.

Advice! To change touch screen settings, use the Touch or Calibration menu item. The exact address can be found in the instructions for your Android smartphone.

If basic Android tools are unavailable or ineffective, use programs from third-party developers. One of the most popular options for such applications is Touchscreen Calibration. The utility is free and available for download via " Google Play Market". It will help improve the accuracy of touch recognition and gestures.

After installation, you will be asked to do several steps to calibrate the screen on Android:

Touch;
Double tap;
Long press;
Scroll;
Approximation;
Distance.

Important! If your Android smartphone does not recognize all gestures, there may be problems with the touchscreen. Restart your device, and then test screen movements in other apps.

Tutorial Video: Android Spot Screen Calibration

SGS Touchscreen Booster Program

Unlike the previous utility, setting the sensor parameters via SGS Touchscreen Booster is done in manual mode. Using the sliders, you can change the values of five basic touchscreen settings:

Sensitivity;
Duration for registering a click;
Minimal movement;
Motion filter;
Maximum number of simultaneous presses.

The default value is indicated in parentheses after the parameter name. If necessary, you can return the standard screen settings by specifying this number. You can also use the "Defaults" button in the lower right corner to install standard settings Android display.

The program has a set of predefined templates. You can select the optimal sensor operation option from the “Presets” drop-down list. To ensure that the settings are applied every time you boot Android, check the “Start service on boot” checkbox.

Note! This utility does not work on all phone models and versions of the Android operating system.

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Like any device, sooner or later the phone begins to break down and fail. Exists a large number of problems that may arise on Android. One of them is the screen’s inadequate response to touches. 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 settings for the device's touch screen. That is, if you ran your finger or stylus across the display, it should display your movements with great accuracy. In the event that your actions and what ultimately happened on the screen differ, you should recalibrate the device. Problems with calibration may occur when replacing the screen, changing device settings, or due to software or physical damage to the device.

Android screen calibration - step by step steps

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

Through device settings

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

Open the phone settings.
Go to the “Display” or “Screen” section.
Go to the “Screen calibration” item or a section with a similar name. If you don’t have such a section, it means that this method not suitable for your device.
We go through the screen calibration process, which is a test where you need to click on points in different places screen.

Android touchscreen calibration via 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.

First you need to enter the menu. To do this, dial one of the special codes in the place where you usually enter phone numbers - *#*#3646633#*#*, *#*#4636#*#* or *#15963#*.
Go to the Sensor section.
Next, go to the Sensor Celibration section.
Click on the Clear Calibration button.
Click on the Do calibration (20% tolerance) button.
We exit the engineering menu by pressing the “Back” button on the phone several times.

Via the Touchscreen Calibration app

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

In the Play Market we find and install the application.
We launch it from the device menu.
Click the Calibrate button.
We carry out the actions that the program suggests to do.
We receive a notification that the calibration was completed successfully.

Via the Quick TuneUp app

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

Install the application from the Play Market.
Open it from the phone menu.
Click on the Display Calibration button.
We wait for some time for the process to complete, and then reboot the phone.

Video: how to increase or decrease sensor sensitivity

How to set up the accelerometer or G-sensor

Also, all modern devices have 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 games where you control the car by turning your phone, and in some other applications.

Through a special application - GPS Status & Toolbox

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

Install the GPS Status & Toolbox application from the Play Market.
Open it and go to the “Tools” section.
Select the “Accelerometer calibration” section.
Place the phone on a flat surface, such as a table or windowsill. Click the “Calibrate” button.
We wait for the process to complete and receive a notification that the accelerometer has been successfully calibrated.

Via Engineering Menu

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

Dial one of the special codes in the place where you usually enter phone numbers - *#*#3646633#*#*, *#*#4636#*#* or *#15963#*.
Open the Hardware Testing section.
Go to the Sensor section.
Go to the Sensor Celibration section.
Click on the Celibration Gsensor button.
We go through the sensor calibration process and exit the engineering menu.

Video: setting up the G-sensor on Android

What to do if the sensor triggers spontaneously

Sometimes it happens that the screen at some points begins to press on its own. This can happen if the touch glass has been damaged, causing it to adhere too tightly to the display in certain areas. In this case, you need to take the device to the service center and ask to replace the glass with a new one. Touch glasses are divided into two types:

Resistive sensors are sensors that respond to changes in pressure, that is, they are triggered when pressed. You can work on such glass using your fingernail, stylus and other objects.
Capacitive sensors are sensors that only respond to finger touch.

If the screen no longer accurately displays what you want to do, then it's time to recalibrate the display. If the phone does not react correctly to changes 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 be broken or scratched.

If the device has been dropped, dropped into water, or technical faults Your Android phone's screen has stopped responding to touch; the screen probably needs to be calibrated. Well, if there is 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 your device's sensor. It may be required if the screen partially or completely stops responding to touch. And it is also possible that the sensor is triggered in a different place than where you touch it with your finger. In any of these cases, calibration should help, unless, of course, the screen is damaged. Calibration may also be required after replacing the device screen.

How to calibrate the screen

Eat different ways Calibrating the Android device screen. It will be useful to consider each of them.

Screen calibration through device settings

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

It's also worth knowing:

Unfortunately, some Android devices do not have a built-in touchscreen calibration feature. In this case, it can be done using other methods.

Calibrating the screen sensor through the engineering menu

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

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

Once you are in the engineering menu, you need to select the “Touch Screen” item.

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

Android screen sensor calibration via computer

If your phone's screen does not work at all, or after calibration a serious error occurred and now the sensor does not respond to touches, calibration via a computer can save your phone and save time on a trip to the service center. To complete this, you will need to install the MSP RemoteAlignment program.

By installing this program and following the instructions, you can do the following:

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

Managing this program is very simple. Pressing the Skip button will automatically perform the calibration, skipping the remaining steps. The Retrive button will load previously saved calibration results, and the Alignment button will enable manual calibration on your phone.

Android screen sensor calibration apps

If you cannot calibrate the screen without using third-party applications, or if you want more options for customizing and controlling the sensor of your screen, you should use applications designed for this.

Calibration apps can help, but they won't work wonders. They are suitable as a last chance before contacting a service center if other screen calibration methods have already been tried.

Touchscreen Calibration app

The Touchscreen Calibration app is quite simple solution and has an extremely minimalistic interface. After you press the only active Calibrate key, the sensor setup will begin directly.

You will need to do a few very simple actions like swiping the screen or double tapping.

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

Once you complete all the specified steps, the program will evaluate the accuracy and complete the calibration. It's really a very simple app that can give you everything you need if your device doesn't have a calibration feature.

Touchscreen Calibration is a very easy to use app

Video: Screen calibration using the Touchscreen Calibration app

Display Calibration App

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

What else can you do to configure the sensor?

If you have tried all the methods available on your version of the device and did not achieve results, all that remains is to contact the service center.

After all, the problem with the screen may not lie in the sensor settings at all, or it may not be solved in such a simple way. At least you'll know that you did everything possible to restore your device's sensor.

Setting up the accelerometer of a phone based on Android OS

The phone's accelerometer determines its position in space or the applied acceleration when it is displaced. It is essential for the following device functions:
changing page orientation when rotating the phone;
counting the distance traveled when using the device as a pedometer;
determining the position of the phone in various applications;

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

for this.

GPS Status & Toolbox App

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

Video: Accelerometer Calibration Using GPS Status & Toolbox App

Clinometer app

The Clinometer program can determine the angle to the surface with an accuracy of ten degrees. But it is interesting to us for another reason - it can be used to calibrate the accelerometer, because it is with its help that the angle is determined. This program is simpler than the previous one, but it fully satisfies our requirements.

Possible problems when calibrating the screen sensor and accelerometer

During the screen or accelerometer calibration procedure, unexpected problems may arise. However, they will be easy to deal with if you follow the tips.

Requires root rights

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 precisely to protect inexperienced users from dangerous changes. But getting them is not that difficult and, in fact, there are two options: On the Internet you can find many programs that will easily allow you to get
necessary rights

. All of them are extremely easy to use and will give you access in one click, so all that remains is 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 modified firmware on your phone. In many custom firmwares, root rights are initially open, or they are opened extremely simply.

After this installation, you should have no problems accessing the engineering menu and you will be able to calibrate the device.

Many owners of Android devices with a touch screen often encounter a problem when the screen “does not listen to them.” That is, when you touch the touchscreen with your finger or stylus at one point, the phone perceives it as a touch at a completely different point. Or the sensor completely carries out orders only after 3-4 attempts. And most likely the cause of these problems is the incorrect operation of the screen, and to fix it, you need to calibrate the touchscreen of the Android device.

Android touchscreen calibration: Video

What it is?

Screen calibration is the process of adjusting the touch display to correctly execute commands when touched with your fingers or a stylus. Of course, you can work with your device without such settings, but then get ready to waste your nerves, time and other troubles.

This procedure is required in most cases after the phone has been dropped, especially in water. Replacing the screen, a water stain underneath, even the smallest damage may require urgent adjustments. Checking whether you need calibration is as easy as shelling pears. To begin, remove protective film so that the sensor operation is as clear as possible, then simply enter a number or letter. If you selected, say, “B”, and “A” appeared on the screen, then rest assured that you need to configure the touchscreen.

There are two main types of screens used in the production of Android devices: capacitive and resistive. Capacitive is now used in the vast majority, as it is more reliable and of higher quality. But problems often arise with resistive ones, and they require tuning more often. But it’s fortunate that these days they are rarely used - only in outdated or budget models.

Android sensor calibration: programs, setup: Video

How to calibrate the screen on Android?

Configuration using special programs

In free, and most importantly - free, access, you can find a lot of software for screen calibration. They are easy to install, easy to operate and, most importantly, produce results. For example, Clinometer, TOPON, Bubble - just look at Google Play. But? even if you do not have access to Google Play, you can adjust the display without it using the second method.

Self-configuration

In order to independently adjust the touchscreen of Android 4 (or another version) without any problems, we will present you with step-by-step instructions:

The first step, of course, is to go to the Settings menu.
Next, select “Phone Settings”.
Find the “Calibration” item and a target cross with a dot inside will appear in front of you.
We aim at the center of the target several times (3 will be enough).
After this, your device will remember the touches and calibration can be considered complete.
After completing the setup, check the operation of the sensor. If exactly the symbol you clicked on appears on the screen, then everything was done correctly. Congratulations! ()

Setting touch screen sensitivity on Android: Video

Contacting the service center

Now you know two ways to calibrate the screen on your Android device yourself. But there is a third option for setting up your device - an official or private service center. It would seem, why contact the master for such a trifle? But such a problem is not always a trifle. It happens that the cause of the breakdown is not due to lost settings, but to a serious breakdown or manufacturing defect of the display. In this case, it is really better to contact the service if the first two do not work.

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