The use of the touch screen on mobile devices significantly expanded their functionality and allowed to get rid of the numerous physical buttons that were needed to enter text and perform other tasks. However, even with so many advantages, the sensor may lose accuracy, which negatively affects the comfortable operation of the device. Consider the concept of screen calibration Android and methods for its implementation.
Definition of screen calibration
Calibration refers to the adjustment of the touch screen in relation to the perception of touching a finger 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 such a plan is carried out by the appearance of circles on the device display, which should be pressed. The data obtained allows the system to determine areas that have increased or decreased sensitivity, as well as areas where the point of contact does not coincide with the displayed element. As a result, the software regulates deviations from the norm and corrects defects.
Sensor issues
In a newly purchased device, the sensor is well tuned and responds correctly to human touch. Over time, the accuracy decreases, errors and inconsistencies appear. It’s easy to understand when to calibrate. The following problems accompany him:
- Intermittent sensor operation. For example, out of three taps on the display, two or one were identified. It is well traced when typing.
- Recognition of certain types of actions disappears. The touch screen is very functional, it supports multiple simultaneous touches, finger stretching, swipe. A sign of a problem may be incorrect recognition of one of the interaction options.
- Incorrect determination of the place of contact. For example, one menu item was selected, and the next opened.
- After interacting with the display, you have to wait a long time for a response.
- Deterioration of recognition of touches when working with a stylus or vice versa - with a finger.
- If, then an obvious sign will be the interruption of the strip when drawing a line.
It's important to know
Touch screen calibration helps to resolve all of the above problems. To perform the operation does not require special skills or the involvement of a specialist.
The causes of the malfunction
The main reason for the situation when calibration is needed is the prolonged use of the device. On higher-quality screens, the procedure is required less often, on lower-quality ones, more often.
Prolonged inactivity of the mobile device can also cause malfunctions. Sometimes calibration is necessary immediately after purchase, as the initial adjustment was not performed correctly. Changing the touchscreen clearly requires subsequent configuration.
note
An additional reason for calibration may be a malicious code that got to the phone through an unverified application, or a system failure in the firmware itself.
Sometimes the user incorrectly sets the sensitivity parameters, which affects the recognition of touches.
It should be understood that the causes of inaccurate sensor operation are not always hidden in the system. it there may be severe abrasion of the display, cracks, bubbles under the protective film, etc. Software calibration does not help here, you will have to use other options for solving the problem.
How to calibrate the screen on Android?
Display calibration available both with built-in operating system tools and third-party applications. Consider each option in more detail.
Mobile Device Settings
Since calibration is an integral part of using the touch screen, in many versions of Android, developers have implemented the function directly into the settings.
To use this method, you must:
- Open the phone or tablet settings, 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 points that appear on the display and drag them.
- Reboot the device when adjustment is complete.
It's important to know
The option may be present in other sections or completely absent. If it could not be detected, you should use other methods presented below.
Will be useful
During setup, the smartphone is best placed on a flat horizontal surface.
Engineering menu
This hidden section contains more serious settings that require some knowledge. This method is suitable for those who have not found the corresponding item in the regular menu and do not want to install third-party software for the procedure.
There are two ways to get into the engineering menu for subsequent calibration of the Android screen:
- Through a special code:
- Open the standard dialer.
- Enter a combination of numbers and signs: * # * # 3646633 # * # * or * # * # 4636 * # *. After the last character, you do not need to press the call button. There are other codes that are suitable for little-known Chinese-made devices. You can find them on thematic forums.
- Through the app:
- 1. Visit the 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 on the “Sensor” item.
- From the list in a 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 the lower sensitivity.
- Saving settings is not required, just go to the desktop by clicking the "Back" button several times.
- Reboot the device.
- and run the application.
- Press the CALIBRATE button.
- Perform the following steps step by step: single tap, double tap, long tap, swipe (move your finger to the side), pinch, zoom in (touch the screen with two closed fingers and part them).
- Close the program window after the notification of the successful completion of the procedure - “Calibration successful”.
- Install and open the application.
- Place the phone or tablet on a table or other flat surface.
- In the list that opens, select “Display Calibration”.
- Wait until calibration is complete. In this case, you do not need to perform different types of touches, the system itself will determine the current configuration and existing inaccuracies. The progress of the automatic setup 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 should disappear.
note
The engineering menu method has an advantage over the application of the corresponding section from the phone settings, therefore it is recommended to use it if the previous option did not help.
3rd party applications
The use of third-party software is justified if there is no calibration item in the phone settings or if it is not possible to get into the engineering menu. The procedure will be examined in detail on the example of the two most effective applications, since they operate by different system and hardware methods.
Instructions for use:
If using Touchscreen Calibration does not produce tangible results, it may be necessary for the current device to use other calibration methods that are used in the application.
The process of working with Quick TuneUp is as follows:
At the same time, the glass does not have to have deep cracks, sometimes it can simply bend due to wear or other factors.
Malfunctions in the sensor of a smartphone based on Android is a common problem of not the most accurate users. It is enough to drop the phone once, spill something or sit on it without noticing it, and there is a significant risk of damage to the touchscreen. Having damaged it, you will no longer be able to use the screen normally, to type a message or simply answer a call will no longer be possible. Such a smartphone is absolutely useless. That is why it is necessary to calibrate the screen to fix all problems. However, not all so simple.
To begin with, it is worth making the most of the state of sensitivity of the sensor. To do this, remove the protective film, if any, and try to type some letter.
If the recognition of touches does not work correctly, for example, instead of one letter, a completely different one is dialed, then screen calibration is simply inevitable. You can do this in different ways, depending on the phone model, brand, and version of the Android operating system.
Today we look at all sorts of calibration methods on different devices, you can try everything, depending on the situation.
How to do it through the settings of the device itself?
Due to the fact that calibration problems are a common problem of users, the developers of OC Android have added the ability to conduct it without installing unnecessary applications.
In order to go directly to the settings, you need to open the general "Settings", go to the "Display" section, and there we find an item with the name 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. After completion, the device will automatically remember the touch, after which the calibration can be considered completed.
Important. Upon completion of all actions, you should make sure the touchscreen is accurate, depending on the result, the calibration can be carried out again.
We carry out the procedure through the engineering menu
If you are not very versed in smartphones, then you are probably the first to hear about this setting mode.
The engineering menu is a whole storehouse of the most various configurations of 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 does it take to get to 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 all of a sudden nothing happened, then in order not to suffer from input, you can simply download a special application from, it is called MTK Engineering Mode Start. With it, you can make various manipulations with the 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 specifically designed to calibrate the sensor. 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. How to get root rights, we already told on the pages of our site, information about this is in the public domain.
Primarily designed for tablets. The procedure is carried out through the same test, but in addition can significantly increase not only the accuracy of recognition of touches, but also improve overall performance, as well as efficiency. This program is indispensable for some Android tablets with handwriting or drawing.
The interface is designed so that you can figure it out on an intuitive level, there are no complicated settings, the most ordinary user can figure it out.
Able not only to calibrate the touchscreen, but also to measure the angle of inclination, the height of the inclination, as well as the inclination of the object relative to gravity.
» news
Like any device, the phone sooner or later begins to break down and fail. There are a lot of problems that can occur on Android. One of them is the inadequate response of the screen to pressing. 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 lost.
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 touch screen settings of the device. That is, if you swipe the display with your finger or stylus, then it should accurately display your movements. In the event that your actions and what eventually happened on the screen are different, you should calibrate the device again. Calibration problems may occur when replacing the screen, changing device settings, or due to software and physical damage to the device.
Calibration Android Touchscreen Calibration
Android Screen Calibration - Step by Step
There are several ways to calibrate Android devices. Some lead through programs that were originally embedded in the phone, while others will require downloading special applications from the Play Market. Let's start with those that require as little action as possible.
Via device settings
Since users often have problems with calibration, developers added the ability to calibrate the device through the device settings:
Open the phone settings.
Go to the phone settings
We go to the "Display" or "Screen" section.
Go to the "Screen" section
Go to the item "Screen calibration" or a similar section in name. If you do not have such a section, then this means that this method is not suitable for your device. We go through the screen calibration process, which is a test where you need to click on points in different places on the screen.
Going through the calibration process
Many owners of Android devices consider the sensitivity of the sensor to be the pain point of their gadgets. It happens that the screen of a phone or tablet does not respond correctly to clicks. For example, the user clicks on the lower left part of the screen, while the sensor interprets this as clicking on the upper right corner.
But the identified problem is not a reason for despondency and an urgent trip to the service. It is possible to try to “curb” your sensor at home by applying screen calibration.
Screen calibration (aka: sensor calibration) is called display adjustment, the purpose of which is to optimize the work and improve the response of the sensor to pressing and touching with your fingers or stylus .
Although calibration of sensors on Android is generally not a necessity, it is recommended to all device users with a resistive or capacitive touch screen. Resistive screens should be calibrated immediately after acquiring the device. With a capacitive sensor, the situation is somewhat different since it is possible to check whether calibration is necessary, or if the display will work clearly and without such an operation.
To do this, remove the film from the screen of the gadget, wipe it with a damp cloth (preferably a special one), and then check the reaction of the sensor. The best way to check is by typing a text message. If frequent typos are indicated during typing, this is a sign of the need to calibrate the touchscreen. It should also be noted, it is quite possible that this procedure will have to be done more than once.
Before proceeding to the screen calibration procedure on Android, you need to find out what caused the sensor to malfunction.
- It is possible that the pie eaten with tea left you a reminder of yourself 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.
- Install applications from dubious sources.
- Drop, shock, or moisture on the device.
- Touchscreen replacement, etc.
As we well know, it is necessary to eliminate the cause, not the effect. It is clear that if the “left” firmware is installed on your smartphone, which was the cause of the failure, you can calibrate the sensor to the “carrot paddock”, but, alas, it will not achieve the desired result.
Nevertheless, even if the device does not need calibration, it will not hurt its owner to know the subtleties of adjusting the touchscreen, since this is a fairly simple manipulation that does not require much time, and even more so a huge layer of knowledge.
To calibrate the screen of any device running on the Android operating system, you can use special programs and utilities, of which there are a sufficient number, and absolutely free. You can also refer to the standard services located in the device menu.
Manual setting
Here you need to clarify that the settings, including the sensitivity of the screen, vary greatly depending on the model of your gadget, and it is quite possible that it will not work in your case. The fact is that manufacturers of mobile devices on top of the standard Android OS settings seem to install their own shell, while changing (or completely excluding) the possibility of a particular setting. The following describes the calibration method for devices with standard settings:
- Go to the settings menu.
- Select “Phone Settings”.
- Go to the “Calibration” menu, where a window appears in the form of a cross-target with a dot inside
- Press the center of the target three times
- Calibration completed. Next, the sensor should be checked by the manipulations indicated earlier.
If these actions are irrelevant for you, then you need to clarify on the manufacturer’s website exactly how you can calibrate your device, or use a special application (read about this method below).
The use of special software
At the moment, there are countless utilities and programs that help customize the touchscreen of an Android device. Among the recommended programs that really helped a lot of users, we can mention the following programs:
Touchscreen calibration - A simple and free tool that can help you quickly and easily calibrate the sensor. Step by Step Actions:
Download the application, open, click the "Calibration" button:
Then, we start the calibration process by clicking on the gray field in 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 it is shown quite clearly. Just in case, we suggest watching another video
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Phones with a touch screen have long supplanted their push-button predecessors. However, many touch phone users often encounter problems with screen calibration failure: it stops responding, responds to touches, is inhibited, or determines the point of pressing incorrectly. In such cases, you need to configure the sensor on android - calibration.
Do I need to calibrate the display
First you need to diagnose your smartphone for sensor response errors. To do this, just turn on the keyboard and press on different keys. If the screen displays exactly the character that you called, then calibration is not required. However, if the response is erroneous, it is necessary to solve the problem by any of the methods described below.
Calibration required:
- Every 1-2 months using a smartphone;
- When attaching a protective glass;
- When buying a new phone or device with hands;
- After drops or moisture;
- After replacing the screen or touchscreen;
- After removing or attaching a protective screen film.
Instructions for setting up the sensor on android phones:
- We carry out the diagnosis by the method described above.
- We go to the “Settings” menu and look for the item “Phone settings”, in which you need to click on the sub-item “Screen calibration”. Sometimes the calibration menu may be in the “Display” section.
- On the screen you will see a small cross, in the center of which is a small red dot. It is necessary to accurately click on it several times, and then save the parameters so that the screen responds correctly to touch.
- We check the result and, if necessary, repeat the procedure.
Also, if your phone does not have the function of setting the sensor in the system menu (and this, do not be surprised, it happens on some smartphones), you can download a special application. This function in them is performed in the same manner as described above. Some applications have additional functions, which allows you to customize the display most accurately.
