Sometimes strange things can occur with the screen of a phone or tablet – it seems to stop listening to the user’s fingers, that is, clicks do not happen or happen, but, for example, when you press the letter Y, the letter E appears on the screen. Has the screen really come to an end? It is unlikely that this is most likely due to the incorrect operation of the touchscreen. In most cases, the problem can be easily solved by calibrating the screen..
What is screen calibration on a smartphone or tablet?
Screen calibration, which is often called sensor calibration (from the English sensor calibration), is a type of display setting that optimizes the touchscreen and improves the response of the sensor when you tap the screen with your fingers (in some cases, the stylus, if any).
As a rule, screen calibration is not required for the device after purchase, although there are reverse cases when the sensor does not “listen” to the user. Over time, changes may occur and then you will have to use the screen calibration.
How to understand if the sensor works correctly? If it works correctly, you do not experience any problems when working with the device. For example, if you type a message and all the letters you clicked on the screen are displayed, you do not need to do anything. Another thing is when you click on one letter several times and only after that it appears on the screen or does not appear at all or a completely different letter appears in its place – all this may indicate that the sensor clearly has problems. True, do not forget that the problem may not be hidden in the touchscreen, but, for example, in a film glued to the screen. In some cases, these may be traces left by something sticky. Wipe the screen with a cloth and see how the sensor works. If also, then it needs to be calibrated.
How to calibrate a sensor without third-party software?
There are two ways to calibrate the sensor – using internal Android software and using third-party software (application). In the first case, the built-in software in your operating system is used. But be careful, not all firmware have a third-party calibration tool.!
And now – a simple instruction.
- Go to device settings.
- Find the “Phone Settings” or “Tablet Settings” section..
- Find the “Calibration” item here. It may be in another section, for example, in the “Screen” section..
- Click on “Calibration”.
- Do the necessary manipulations. It can be, for example, pressing certain buttons on the screen or simply pressing the screen.
In our case, there is no firmware for screen calibration, so we are forced to use the application from the Google Play Market. If this is your case, then read the instructions below..
How to calibrate a sensor using third-party software?
We go into the Google Play Market and write in the search display calibration.
Select the application and click “Install”.
The application is installed. We launch it. Specifically, this application is good in that you practically do not need to do anything – just click on the large blue Calibrate button in the center of the screen.
The calibration process has begun. Do not touch or turn off the device.!
After about 30 seconds (the numbers may be different), you will see that the calibration is completed, as indicated by the date of the last calibration.
Check the performance of the touchscreen.
What to do if calibration fails?
Try other applications from the Market. If they do not help, you can try resetting the settings to restore the device to its original form. You can also try to reflash the device. If this does not help, most likely, the touchscreen has ordered a long life and needs to be replaced. Contact a service center.