Using touch screen on mobile devices ah significantly expanded their functionality and made it possible to get rid of numerous physical buttons, which 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. In the end 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 in 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.
Important to know
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 apparatus. 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.
Please note
An additional reason for calibration may be malicious code, which came to 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 operating system tools and 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.
- After starting the procedure, you will need to click on the dots that appear on the display and drag them.
- Reboot the device after completing the adjustment.
Important to know
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.
Will be useful
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.
Get into 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.
- 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.
- 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.
- 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.
After successfully entering the engineering menu, you must perform the following steps:
When the operating system will start, inaccuracies in the sensor operation should disappear.
Please 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 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:
If using Touchscreen Calibration does not produce noticeable results, you may need to current device you need to apply other calibration methods that are used in the application.
The process of working with Quick TuneUp is as follows:
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
Problems with the sensor of an Android smartphone - common problem not the most careful users. It is enough to drop your phone once, spill something on it, or sit down without noticing it, and there is a significant risk of damaging the touchscreen. If it is damaged, you will no longer be able to use the screen normally; typing a message or simply answering a call will no longer be possible. This smartphone is absolutely useless. That is why it is necessary to calibrate the screen to correct all problems. However, it's not that simple.
To begin with, you should make sure as much as possible about the sensitivity of the sensor. To do this you need to remove protective film, if there is one, and try to type a letter.
If touch recognition occurs incorrectly, for example, instead of one letter a completely different one is typed, then screen calibration is simply inevitable. This can be done in different ways, depending on the phone model, brand, and version of the Android operating system.
Today we will look at various calibration methods on different devices, you can try everything, depending on the situation.
How can I do this through the settings of the device itself?
Due to the fact that problems with calibration are a common problem for users, Android OS developers have added the ability to carry it out without installing unnecessary applications.
In order to go directly to the settings, you need to open general “Settings”, go to the “Display” section, and there we find an item called "Screen calibration". If there is no such item, then find a similar one; the name may differ on different devices and versions of the Android OS.
The calibration process itself is a small test where you need to touch the screen in different places. Once completed, the device will automatically remember the touches, after which the calibration can be considered complete.
Important. Upon completion of all actions, you should make sure that the touchscreen is accurate; depending on the result, calibration can be done again.
We carry out the procedure through the engineering menu
If you don’t know much about smartphones, this is probably the first time you’ve heard about this setup mode.
The engineering menu is a whole storehouse of a wide variety of configurations for your Android. Once in it, you can access all available configurations. This mode is suitable for users who like to fully customize this or that device for themselves.
So, what do you need to get into this very menu? First you need to open the dialing window and enter the following combinations there:
- * # * # 3656633 # * # *
- * # 15963 # *
- * # * # 4636 * # *
Which combination is suitable depends on the smartphone itself.
If suddenly nothing works out, then in order not to suffer with input, you can simply download a special application from, it’s called MTK Engineering Mode Start. You can use it to perform various manipulations with your phone.
Closer to the point. Here we are in the engineering menu. Now you need to do the following:
Using apps
There are many programs that are designed specifically for sensor calibration. There are both paid and free versions. Some of them require Root rights on the device. Below we will tell you about several such applications.
To use this program you need root rights, so before proceeding with the settings, we should take care of this. We have already described how to get root rights on the pages of our website; information about this is freely available.
Primarily created for tablets. The procedure is carried out through the same test, but in addition can significantly improve not only the accuracy of touch recognition, but also improve overall performance and efficiency. This program indispensable for some Android tablets with the function handwriting input or drawing.
The interface is designed in such a way that you can figure it out intuitively, there are no complex settings, and the most ordinary user can figure it out.
It is capable of not only calibrating the touchscreen, but also measuring the tilt angle, tilt height, and the tilt of an object relative to gravity.
» News
Like any device, sooner or later the phone begins to break down and fail. There are a large number of problems that can occur 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.
How to improve the sensitivity of the sensor on a smartphone/tablet?
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 Touchscreen Calibration
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 phone settings
Go to the “Display” or “Screen” section.
Go to the “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 dots in different places on the screen.
Going through the calibration process
Many owners of Android devices consider the sensitivity of the sensor to be a pain point of their gadgets. It happens that the screen of your phone or tablet does not respond correctly to touches. For example, the user clicks on the lower left part of the screen, but the sensor interprets this as clicking on the upper right corner.
But the emerging problem is not at all a reason for despondency and an urgent trip to the service center. It is quite possible to try to “curb” your sensor at home by using screen calibration.
Screen calibration (also known as sensor calibration) is the setting of the display, the purpose of which is to optimize the operation and improve the response of the sensor to pressing and touching with fingers or a stylus .
And although calibrating sensors on Android is generally not necessary, it is recommended for all users of devices, both resistive and capacitive touch display. It is advisable to calibrate resistive screens immediately after purchasing the device. With a capacitive sensor the situation is somewhat different since it is possible to check whether calibration is necessary, or whether the display will work clearly without such an operation.
To do this, you need to remove the film from the gadget’s screen, wipe it with a damp cloth (preferably a special one), and then check the sensor’s reaction. The best way checks - set text message. If there are frequent typos when typing, this is a sign that the touchscreen needs to be calibrated. It should also be noted that it is quite possible that this procedure will have to be done more than once.
Before you begin the screen calibration procedure on Android, you need to find out what caused the sensor to malfunction.
- It is quite possible that the pie eaten with tea left you with a reminder of itself in the form of traces left on the screen when answering an urgent call.
- The proximity sensor or Air Gesture function is not working properly.
- Using custom (not official) firmware.
- Installing applications from dubious sources.
- The device has been dropped, hit, or wet.
- Replacing the touchscreen, etc.
As we know well, it is the cause that needs to be eliminated, not the effect. It is clear that if your smartphone has the “wrong” firmware installed, which was the cause of the failure, you can calibrate the sensor until you “drive the carrots”, but the desired result in this case, alas, will not be achieved.
However, even if the device does not need calibration, it will not hurt its owner to know the intricacies of setting up the touchscreen, since this is a fairly simple manipulation that does not require much time, much less a huge layer of knowledge.
To calibrate the screen of any device running in the operating room Android system, you can use special programs and utilities, of which there are a sufficient number, and absolutely free. You can also access standard services found in the device menu.
Manual setting
Here it is necessary to explain that the adjustment options, including screen sensitivity, vary greatly depending on the model of your gadget, and it is quite possible that it will not be suitable in your case. The fact is that mobile device manufacturers standard settings Android OS, as it were, installs its own shell, while changing (or completely eliminating) the possibility of one or another setting. The calibration method for devices with standard settings is described below:
- Go to the settings menu.
- Select “Phone Settings”.
- Go to the “Calibration” menu, where a window will open in the form of a cross-target with a dot inside
- Click the center of the target three times
- Calibration is complete. Next, you should check the sensor using the manipulations indicated earlier.
If these steps are not relevant for you, then you need to check on the manufacturer’s website exactly how you can calibrate your device, or use a special application (read about this method below).
Using special software
On at the moment There are countless utilities and programs that help you configure the touchscreen of your Android device. Among the proven programs that have really helped many users, the following programs can be noted:
Touchscreen Calibration– simple and free tool, which can help you quickly and easily calibrate the sensor. Step by step steps:
Download the application, open it, press the “Calibrate” button:
Then, we start the calibration process by clicking on the gray field on the screen:
After that, in the gray field we execute the commands that appear in the green squares:
Unfortunately, the utility is not Russified, but what and how to do is shown quite clearly. Just in case, we suggest you watch the video
Data-lazy-type="image" data-src="http://androidkak.ru/wp-content/uploads/2015/12/kalibrovka-sensora..png 400w, http://androidkak.ru/wp- content/uploads/2015/12/kalibrovka-sensora-300x177.png 300w" sizes="(max-width: 163px) 100vw, 163px">
Phones with touch screen have long displaced their push-button predecessors from use. However, many touchphone users often encounter problems with screen calibration: it stops responding, responds to touches slowly, or incorrectly detects the pressure point. In such cases, it is necessary to configure the sensor on Android - calibration.
Does the display need to be calibrated?
First, you need to diagnose your smartphone for sensor response errors. To do this, just turn on the keyboard and press different keys. If the screen shows exactly the symbol you called, then calibration is not required. However, if the response is incorrect, you must solve the problem using any of the methods described below.
Calibration required:
- Every 1-2 months of using a smartphone;
- When sticking protective glass;
- When purchasing a new phone or device from your own hands;
- After falls or moisture;
- After replacing the screen or touchscreen;
- After removing or sticking the protective screen film.
Instructions for setting up the sensor on Android phones:
- We carry out diagnostics using the method described above.
- Go to the “Settings” menu and look for the “Phone settings” item, in which you need to click on the “Screen calibration” sub-item. Sometimes the calibration menu may be located in the Display section.
- You will see a small cross on the screen with a small red dot in the center. You need to press it as accurately as possible several times, and then save the settings so that the screen responds correctly to touches.
- We check the result and repeat the procedure if necessary.
Also, if your phone does not have the function of setting up the sensor in system menu(and this, don’t be surprised, happens on some smartphones), you can download special application. This function they are produced in the same way as described above. Some applications have additional features, which allows you to adjust the display as accurately as possible.
