Almost every Android device (be it a tablet or a phone) has a touch screen. Many gadget owners may have noticed on their devices that the screen does not want to obey. You press with your finger or stylus in one part of the screen, and the action happens in a completely different one. There may be cases when the touch screen on Android reacts to your touch through certain time or does not respond at all. In most cases, screen calibration can solve these problems.

What is this process?

Calibration is a process of adjustment proper operation sensor In a completely new phone, the sensor clearly and quickly responds to presses with high accuracy. However, over time this accuracy can decrease significantly.

The need for calibration is very easy to determine: just turn on the keyboard on your gadget and press a key. For example, if when you touch the letter “E” the adjacent letters “K” or “H” are printed, then this indicates the need for urgent calibration.

This procedure is also necessary in a number of other cases, in particular:

• It is recommended to regularly adjust the sensor every two or three months;
• after installing the protective film;
• if moisture gets inside your phone or tablet;
• after repairs, in particular replacing the touchscreen or screen.

Before you calibrate the sensor, make sure that the problem is not caused by the protective film. Sometimes cleaning protective glass will help improve the performance of your phone's sensor.

Calibration without third-party programs

The Android system has a very wide functionality that allows you to do many things regarding setting up the gadget. In most models in the operating room Android system 4+ there is a corresponding item in the settings menu.

To calibrate your phone or tablet's sensor via standard menu, you must perform the following steps:

1. Go to your gadget's settings.
2. Select the sub-item “Phone settings”. In some cases, the calibration function may be located in the “Screen” sub-item.
3. Select the “Calibration” item.

This procedure involves sequentially clicking on dots in different parts of the display. Your goal is to click on the required point (cross) as accurately as possible so that the smartphone remembers correct settings. After completing the procedure, check the correct response on the standard touch keyboard of your phone.

Some Android models do not have a standard feature. The solution may be to configure via engineering menu. This special teams operating system, which allow you to perform more fine tuning devices. For each specific model. There you can perform calibration.

Using specialized programs

If the settings of your phone or tablet still do not contain the necessary function, and you do not want to configure it through the engineering menu, you can download special application. This is a quick and convenient way to configure your sensor.

To do this you need to go to Google Play(app store for Android), and then enter “display calibration” in the application search bar. A search will give you a huge variety of different applications, each of which is capable of calibrating the touch display.

How to calibrate the screen (touchscreen) on Android.

Most users have encountered this problem when the sensor (screen, touchscreen) does not work correctly. For example, you press one letter, and the next one is pressed. This occurs due to a malfunction of the touchscreen (sensor), but fortunately this problem is easily solved.

In this article we will talk about calibration: what it is, how to calibrate the screen on Android, etc.

What is calibration?

Sensor calibration is a screen adjustment whose main task is good optimization touchscreen response.

Why does the sensor malfunction?

There are a couple of types of sensor damage: mechanical damage and system failure.

Mechanical damage is when you dropped your phone, or. In most of these cases, the touchscreen has to be changed, and calibration will not help.

A system crash can occur due to some application, or simply from . Also, they can disrupt the operation of the sensor. In this situation, calibration may help, or it may not, so to speak, it’s 50/50. In any case, if you start having problems with the sensor, do calibration. If it doesn’t help, then use more serious methods (we’ll talk about them later).

How to calibrate the sensor?

To calibrate the touchscreen, there are special programs that can produce this operation V automatic mode. There are also system utilities, which are located in the settings menu, and in turn, they make it possible to manually calibrate the sensor. But since not every smartphone has such a function, we will not consider this point, and will proceed straight to the special software.

Luckily for us, there are many free programs for calibration, and now we will tell you about the most popular ones.

Touchscreen Calibration is a free and simple utility that allows you to easily calibrate your sensor.

• Launch the program
• Click on the “Calibrate” button
• A gray field will appear, click on it. The calibration process will start
• After calibration is completed, commands that need to be executed in the gray field will appear in the green rectangles below:

These commands include screen tap, double tap, zoom in, slide to side, etc. Since the program is completely English language, the gray field displays hints in the pictures, so it’s very easy to understand, despite the lack of Russification.

After completing all operations, you can close the program and restart your smartphone.

All these programs are similar to each other and all have the same algorithm of actions. Therefore, we will not describe the principle of each program, but will only give you a small list of similar software:

• SGS Touchscreen Booster
• Touch Accuracy
• Display Calibration

What to do if calibration does not help?

In this case, there are two options: or take it to the service center.

If the failure is in the system, then the firmware will help. During the firmware update, all modules and drivers are updated, including those for the touchscreen. And if the breakdown is mechanical, then you need to take it to a phone repair shop. They will most likely replace the touchpad there.

It is worth noting that some smartphones may be of different revisions and have a different touchscreen. And if you install a touchscreen that is not for your revision, then it simply will not work.

Conclusion

As you can see, calibrating the sensor is very simple. Therefore, if your sensor malfunctions, do not rush to take it for repairs or buy a new smartphone. In 50% of cases, this problem is solved with the help of calibration.

But there is one caveat. Calibration is possible if it has small errors in operation. And if you, for example, click on an icon somewhere at the top of the screen, and the contacts button is pressed at the bottom, then there is only one way for you - to service center for a new sensor.

More articles on the topic of the Guide.

What is calibrating the screen of an Android tablet? Let's answer this question that users involuntarily ask Google devices. This is a deep response customization touch screen to user touches. That is, with her correct installation The device must provide a quick and clear response. If this does not happen or a completely unnecessary result is given (you click on the upper right corner, and the display reacts as if you clicked on a completely different place), then you need to calibrate the screen.

The principle of calibrating the screen of an Android tablet using manual installation or using special programs

Also, screen adjustment may need to be done on the surface or immersion in water. It even happens that after such an unpleasant incident you may need urgent device repair and replacement of sensors or display. Therefore, it is necessary to calibrate the touch screen after replacing it on the tablet. But don't forget to remove it first protective film from the device, if it has been installed.

There are two options for setting up the touch screen to work correctly - these are manual installation and the use of a special program. Do not forget that the calibration procedure does not change for different models devices. The principle remains the same, since all such devices operate under the control of the same one.

Manual screen adjustment

So, in order to calibrate the device display you need:

1. Go to the settings menu of your tablet computer;
2. Select “Phone Settings” and then go to the “Calibration” tab;
3. In the window that appears, you will see a cross with a dot located inside it. You will need to click on the target several times (about three or four);
4. Now your device will remember and record these touches in its memory.

The display setup is considered complete at this point.

Be sure to check the operation of the touch screen after performing the manipulations. If the response is now correct and the screen makes no errors, then you have completed the calibration quite successfully.

Calibration using apps

You can also additionally use the services of special programs. They can be freely downloaded and installed from . Not only are they easy to use and operate, but they also produce results. Examples of similar utilities include applications such as Bubble, Clinometer, and so on.

We looked at two ways self-configuration response to touch. Now you know how to calibrate the screen of an Android tablet. But there are times when you may need to contact a specialist. Do not think that this is some kind of trifle because there may be various reasons behind the incorrect operation of the touch screen. For example, a manufacturing defect or serious damage to the sensors. Then you will need to either replace the display or exchange it for a new device.

Have you noticed a decrease in screen sensitivity and responsiveness? Are there areas that are not working or require increased effort? Don’t rush to get upset, run to a repair shop or get a new one Android smartphone. Perhaps the touchscreen needs calibration.

What is calibration

Calibration includes a set of measures aimed at adjusting the display in order to restore functionality and troubleshoot problems.

When and why is calibration necessary?

The registration of commands by the user is monitored by built-in sensors. A malfunction or incorrect settings lead to unpredictable consequences, including complete failure of the touchscreen. This can be caused by falls, shock, moisture, electrostatic discharge, or incorrect setting at the factory. Often, loss of sensitivity or inactive areas appear after sticking glass, film or changing the screen module. Therefore, calibration, in most cases, helps to completely or partially correct the incorrect operation of the sensors.

Preparing for calibration and troubleshooting

1. Use a dry cloth to remove any dust, moisture, or greasy fingerprints from the screen.
2. It is necessary to remove the protective film/glass, since dust trapped under the edges is perceived by the screen as being pressed by the user. Often glass or film impairs sensitivity.
3. Remove covers, decorations and accessories. The metals, alloys and magnets used often have a negative effect on the sensors.

After each item, check if the problem has gone away. If not, proceed with calibration.

Calibration Methods

The procedure is free and does not require additional equipment. Performed using the engineering menu and/or applications.

Calibration via the engineering menu

To edit the operation of sensors, use a hidden section with settings. To enter you need to enter a combination of numbers and symbols in the dialing window phone number, in the format: *#*#хххххх#*#* or *# хххххх#* or *#*# хххххх*#*, where хххххх is a set of numbers. The combination and digital code are different for each manufacturer. Therefore it is necessary to set search query in the Internet. For owners of devices with MediaTek SoC, the MTK Engineering Mode Start application is available, which launches the engineering menu without the need to enter a code.

Important! Changes made in the engineering menu are saved even after a reboot. Therefore, you should not change other settings without proper knowledge and preparation.

After going to the engineering menu, you need to perform several simple steps:

1. At the top of the screen, select the “Hardware Testing” section.
2. Scroll down the list and select “Sensor”.
3. Among the suggested options, click “Sensor Calibration” and then “Gsensor Calibration”.
4. Next, you need to clear the calibration values ​​by pressing the “Clear Calibration” button.
5. Then perform calibration by pressing the “Do calibration 20% tolerance” or “Do calibration 40% tolerance” button. After this, sensor calibration is considered complete. It is recommended to start with a lower value, otherwise try the second option.

App calibration

This method is suitable if you were unable to enter the engineering menu or if the calibration did not give the desired result. Then you will need to download one or more calibration applications.

Touchscreen Repair

The program divides the work area into 4 sections, determines the response time and builds one value. It also reduces response time.

TouchScreenTune

The utility adjusts the screen sensitivity and also allows you to ignore palm touch. This is useful when drawing or entering information with a stylus. Superuser rights are required to operate.

SGS Touchscreen Booster

The application changes the sensitivity values, registration time and minimum touch. The maximum multi-touch value is also adjusted. There is a shortcut to enable/disable settings.

Touchscreen Calibration

Calibration requires six steps simple actions: single and double touch, long press, etc. At the end of the test, the program will evaluate the accuracy of the work and make appropriate changes.

Conclusion

Self-calibration will save time and money, save you from going to a repair shop and postpone the purchase of a new device. And the simplicity of both methods does not require significant knowledge or experience. If the calibration did not give the desired effect, and the problem persists, then you will have to carry out additional diagnostics or contact specialists.

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. First, remove the 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:

1. The first step, of course, is to go to the Settings menu.
2. Next, select “Phone Settings”.
3. Find the “Calibration” item and a target cross with a dot inside will appear in front of you.
4. We aim at the center of the target several times (3 will be enough).
5. After this, your device will remember the touches and calibration can be considered complete.
6. 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.