How to calibrate the Android touch screen: You get the impression that the screen of your device Android does not respond correctly to commands? When typing text on the phone keypad is key pressure not as responsive and accurate as it should be? Do not worry, perhaps it is a problem that can be corrected without bringing the terminal to assistance, by calibrating the Android touch screen at the software level.
Assuming that the loss of precision was common above all in older and cheaper devices, which until a few years ago often had poor quality resistive displays (now, fortunately, almost fallen into disuse), calibrating the touch screen can sometimes prove useful even on the most recent terminals… provided, of course, that there is no hardware problem underneath, therefore linked to the breakage of the display or that of other internal components of the device.
Having said that, since it doesn’t hurt to try, I suggest you take a few minutes of free time and try to follow the instructions on how to calibrate android touch screen that I am going to provide you with this guide. If you are lucky, you will be able to solve the reactivity problems of your device without replacing it or taking it for repair. Ready to give this attempt? Yup? Very good! So let’s ban the chatter and proceed immediately!
Before delving into the guide and see in detail how to calibrate android touch screen, it seems only right to provide you with some preliminary information regarding the operation of the technology in question.
As I mentioned in the introduction of the tutorial, the screen of the devices is usually equipped with capacitive touch screen (the resistive one is now used only in the industrial field for the realization of the screens of plants and machinery). This technology allows you to interact with the various elements on the screen by touching a surface that is very sensitive to the touch of your fingers and, more generally, to anything that is capable of conducting electricity, such as capacitive pens and gloves (if remember, in the deepening in which I explain how the touch screen works I explained it to you in detail).
When a device’s touch screen is not responding properly, this can be due to two possible reasons: type problems software, easily solved with a touch screen calibration procedure (to be carried out from the settings or with ad hoc applications), or problems of type hardware, which instead require the replacement of the damaged component.
In this article, therefore, I will show you how to solve the first type of problem; for the second, there is no other solution than to have the device repaired at official assistance or a specialized technician.
How to calibrate the touch screen on Android
If you agree, let’s get to the point and see immediately how to calibrate the touch screen on Android by acting from the operating system settings or using a third-party application suitable for the purpose. Find everything explained in detail right below.
If you prefer to act by Android settings, know that the only option that allows you to calibrate the touch screen is the one inherent in the virtual keyboard. So if you’re having trouble typing text, the directions I’m about to give you will most likely be helpful. If not, you can advanced test the degree of display accuracy and responsiveness and, depending on the outcome of the thing, decide whether or not to bring your device to assistance.
To perform a keyboard calibration, open the app Settings, by tapping on the icon with thegear located on the Home screen or in the drawer (the screen containing the icons of all the apps installed) and, in the menu that opens, select the item Language and text, Language and input or Language and input (depends on the model of Android smartphone or tablet and the version of the operating system in use). If you can’t see the items Language and text or Language and input, you most likely need to tap the tab first Checks which is located at the top of the screen that is shown to you (it always depends on the device in use anyway).
In the menu that opens, select the keyboard name used on the phone (it is the one marked with a check mark or the one indicated next to the item Default) then go to the menu with the general settings and select the calibration item.
At this point, you will be asked to type a text on the Android keyboard and, subsequently, to press on the wording Save or Done, to save the calibration settings. If after performing the above procedure the situation does not improve, try to repeat the keypad calibration by putting the smartphone screen in landscape mode.
Note that the calibration option isn’t present on all Android keyboards, so you might not even find it. If so, to try and fix the typing problems you are having, it might be helpful to install a new keyboard on your device. If you don’t know how to do it and if you don’t know which keyboards to download, check out my guide on how to change your Android keyboard to find out how to proceed. Once you have downloaded another keyboard, you can repeat the steps just mentioned, so as to calibrate it correctly.
Alternatively, you can run some tests to check whether or not it is necessary to calibrate the Android touch screen using the special tools natively integrated in some versions of the mobile platform of the “green robot”.
These tools can be called up by starting the call dial screen (the dialer of the app Phone) and composing one of the following codes
*#*#2664#*#*. To exit the test screen and return to the Android home screen, just press the key Home on the phone.
Please note that the tools to verify the correct functioning of the Android touch screen cannot be invoked with both codes on all devices. Furthermore, these tools are not integrated on some smartphones and tablets. In this case, in order to verify whether or not it is necessary to calibrate the Android touch screen you will necessarily have to resort to the use of special apps such as the one I am about to show you.
App to calibrate the touch screen on Android
Unfortunately, as I mentioned earlier, there are not many effective methods to calibrate the Android touch screen at the software level, but before taking the device to assistance, perhaps you would do well to test the degree of accuracy and responsiveness of the display in an advanced way. .
There are various ways to test the touch screen of an Android phone or tablet. The first system, the simplest one, consists in downloading app suitable for the purpose and use them to check if the smartphone correctly receives the inputs received on the screen. One of the best in the free sector is Multi-touch Benchmark Test, which allows you to view on a black background the points on the screen where the phone recognizes the user’s touch and, consequently, to test the operation of the touch screen in an extremely simple way.
To download Multi-touch Benchmark Test on your device, access the home screen of your smartphone or tablet, press the icon of Play Store, you write “Multi-touch benchmark test” in the search field at the top and tap the button in the shape of magnifying glass attached to the keyboard displayed at the bottom of the screen. If you want to speed up the execution of these steps you can tap on this link directly from your device (if you are reading the article on the device being calibrated).
Subsequently, presses on the first result in the search list that is now shown to you and then tap first on the button Install. Then wait for a while for the download and app installation procedures to start and complete. If you use a device without Google services, you can search for the app on an alternative store.
When installation is complete, start Multi-touch Benchmark Test by tapping its icon. Once the main screen of the app is displayed, then press on the item OK, to close the warning that appeared on the screen relating to the search for new updates, and presses anywhere on the screen, so that you can start serving them.
As you can see, you will be shown a black screen with the wording TOUCH SCREEN: All you have to do is press the screen with your fingers to test the points on the display where the device recognizes the touch. You can also test the number of simultaneous touches that the display supports by pressing on the screen with several fingers simultaneously. Each time you press the display, colored circles appear indicating that the touch has actually been recognized.
To view information on the number of simultaneous points, the total number of touches and the EPA and FPS data, take a look at the statistics shown in the upper left part of the app screen.
What to do if the touch screen does not work
From the tests you performed earlier, the touch screen does not work? In this case, as I told you in the introductory jokes of the article, the problem could be related to a hardware malfunction. Before reaching this conclusion, however, try to do one last thing: restart your device. By doing so, you can effectively rule out that the problem is related to a software malfunction.
To proceed, press and hold the on for about ten seconds power button or, if that doesn’t work, press and hold the power button together with the volume key (-) or, again, the power button together with Home button. Keep finger pressure on these keys for about ten seconds and see if, when the device is turned on again, the touch screen responds to commands correctly or not. More info here.
If the touch screen does not resolve when you restart your device, try a full operating system restore. If you do not solve this, it is practically certain that the problem has a hardware genesis. In this case, the only thing left for you to do is bring the device in for serviceso that it can be repaired by a specialized technician.
To find the service center closest to you, try searching the Internet by typing “Touch screen repair [marca/modello del dispositivo]” or contact the manufacturer’s customer care directly, so that the assistance you need can be provided.