How to set up a touchscreen on Android. Calibrating the screen sensor on Android: why and how to do it? Through a special application - GPS Status & Toolbox
Sometimes the tablet's touchscreen or G-sensor calibration fails. 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. It is very easy to find out which display is in your device - just read the instructions for it, or look on the manufacturer’s website.
Resistive display sensors
Resistive touchscreens 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 car navigators. Now a little theory so that you have an idea of what kind of resistive displays these are. Try not to fall asleep while reading.
The design of such a screen is very simple - two plates, hard 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 press. This type of sensor has several disadvantages: low light transmission, fragility, the sensor responds specifically to pressing and not to touch (therefore, you can control it with a regular stylus or any other fairly hard object, such as a match), the inability to detect several simultaneous presses, and also Due to manufacturing features, the parameters of the plates for each sensor may vary slightly, which causes inaccuracies in control.
To configure 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 (may be called differently, but the meaning is the same). Since I have capacitive screen, I don’t have such settings, and I 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 will remember the settings. After this, the sensor readings will be adjusted in accordance with these settings, which will ensure an accurate determination of the location of the press.
Capacitive sensors
There are two main types of such sensors: surface capacitive and projection capacitive. The first ones are designed quite simply: at the corners of the conductive plate of the sensor, AC voltage, and leakage currents caused by the introduction of foreign capacitance (for example, from a finger) are checked. Based on the current ratio for each angle, the point of contact can be determined. These sensors do not respond to a regular stylus or gloved hand. Such sensors are quite rare, do not support multiple simultaneous touches, and also require calibration. Calibration is performed as for a resistive sensor.
Projected capacitive sensors, the most common today, have a complex multilayer design consisting of a matrix of individual sensors combined into a rectangular structure. You can control several simultaneous touches (multi-touch). Such a sensor is sometimes made directly on the glass of the screen, 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 different diagonals, and 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 via engineering menu(you need to figure out how to get there specifically for your model) or using special programs, for example TouchScreen Tune (it is in Google Play Market). Sometimes capacitive sensor may not work correctly when charging due to interference from a non-original charger. There is no need to calibrate anything here - the charger goes into the garbage chute.
Accelerometer calibration (G-sensor)
This sensor, also called a gyro sensor or accelerometer, is used to determine the position of a device in space. G-sensor calculates the speed and rotation angles of the device. The simplest example use – the “auto-rotate” function in Android and controlling games by tilting or rotating the phone (tablet). Air mouse remotes also use this sensor. Accelerometer calibration is usually not required; many games and programs allow for adjustments. It’s another matter if, after a “crooked” firmware, the accelerometer does not work at all or is difficult to configure normally. The engineering menu will help you here; there you can test and calibrate the G-sensor, or install 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 volume up 2 times, and then - Reboot.
A short video on calibrating the G sensor (accelerometer) using the example of a Chinese tablet
Bottom line
In general, first find the reason why your display is behaving inappropriately. Don't rush to calibrate, figure everything out first. Perhaps you share lunch with your tablet, so the screen remains greasy spots or traces of jam. Dispose of them carefully. It happens that a person accidentally touches the display with a finger of the hand with which he is holding the tablet, and the sensor is triggered. 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 with your conscience.
Many owners of Android devices with a touch screen often encounter this 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.
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 similar setup, but then get ready to waste your nerves, time and other troubles.
Calibration Android sensor 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. Check whether you need to carry out this procedure, as easy as pie. 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.
I would also like to note that in the area with calibration, you may need to adjust the sensitivity of the touch screen. The entire procedure is described in detail.
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 with resistive ones, problems often arise and require adjustment more often. But fortunately, such screens are now rarely used - only in outdated or budget models.
How to calibrate the screen?
There are two main ways to fix a broken touch sensor - special programs and personally. We should also remind you that for HTC, Samsung, Nokia and other Android devices, the calibration procedure is almost identical.
Android touchscreen calibration: Video
Configuration using special programs
In free, and most importantly - free, access, you can find a lot of software to carry out this process. 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 configure the display without it using the second method.
Android sensor calibration: programs, setup: Video
Self-configuration
In order to without special problems do the setup yourself Android touchscreen 4 (or another version), 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!
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 - official or private service center. It would seem, why contact the master for such a trifle? But similar problem is not always a small thing. 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.
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:
- 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.
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 installation 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 in 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 special combination 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 a serious error has occurred after calibration and now the sensor does not respond to touches, calibrating through a computer can save the 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
Application Touchscreen Calibration is quite simple solution and has an extremely minimalistic interface. After you press the only active Calibrate key, the sensor setup will begin directly.
It will be necessary to do several 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 the same way. in a simple way. By at least, you'll know you've done 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;
- control the phone by shaking or tilting.
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, and special applications for this will help.
GPS Status & Toolbox App
Let's look in detail at how to calibrate the accelerometer through the application. GPS Status& Toolbox. 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 are provided full access to the device settings and are needed just 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 obtain the 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.
The screen sensor works on its own, involuntarily
A problem with the screen responding on its own usually points directly to a problem with the device’s sensor itself. If calibration does not help, you can try the following before contacting the service center:
- install a protective film between the sensor and the device display;
- Make sure that there is no physical distortion of the device sensor.
If all this does not help, then all that remains is to replace the sensor.
There are many ways to calibrate your device's touchscreen, and there are also apps you can use to adjust the accelerometer. Now you can configure your device yourself and solve your problem with the screen or gyroscope.
Enough a large number of Users of devices with Android OS encounter incorrect display operation. In other words, when you press your finger on the screen at a given point, the device responds by turning on some function in another place. Or touchscreen executes a command only after several clicks on the same position. Most likely the root cause of this problem is incorrect work the display itself, and in order to correct the situation, you will need to configure the touchscreen of your smartphone.
What it is?
Display calibration is special setting smartphone screen, which serves to adjust the accuracy of command execution while pressing. It must be said that you can use your smartphone without these adjustments, but in this case you need to be prepared for regular errors and other problems.Setting up the touch part Android devices most often needed after hard fall smartphone. Installing a new display, a wet spot under the screen, or unnoticeable damage may require immediate attention. It is very easy to find out whether your device requires such a setting. Before you start, peel off protective covering, if you have it, so that the device’s operation is as accurate as possible, then simply tap on any character on the keyboard. If you pressed the number “3”, and at that time “4” or “2” was displayed on the display, then you can say for sure that you urgently need to adjust the screen. It must be said that in conjunction with calibrating the screen accuracy, you may need to adjust the touch sensitivity of the display. We will also describe this procedure in detail.
In smartphones based on Android OS this moment Two types of screens are used: resistive and capacitive displays. The second type is used most often today, since it is more responsive protective characteristics. But problems occur with the first representative, and it requires adjustment more often than a capacitive one. But at the moment, such displays are installed very rarely - only in very cheap devices or obsolete ones.
How to calibrate the screen?
Today, there are two methods to fix a malfunctioning sensor - the manual method and separate utilities. It should also be said that for devices Samsung companies, Sony, Nokia, and other Android devices, the screen calibration process is no different.Android touchscreen calibration: Video
Configuration using special programs
In the vastness Play Market today you can find a bunch special utilities to carry out this procedure. They are not particularly difficult to operate and are extremely effective in use. For example, programs such as TOPON - just go to Google Play and you will find what you need. But if you do not have access to the Internet, then you can always set up the display without it, using the second method.
Android sensor calibration: programs, setup: Video
Self-configuration
To manually calibrate the display on Android versions 4+, we'll show you a step-by-step guide:- Go to the “Settings” of the device.
- Go to the “Phone Settings” section.
- Select the “Calibration” category, after which a cross with a dot will appear in front of us.
- Tap directly into the center of the cross 2-3 times.
- After touching, the smartphone will remember the command and complete calibration of the device.