Malfunctions of the sensor of a smartphone based on Android - frequent problem not the most accurate users. It is enough to drop the phone once, spill something on it or sit down without noticing it, and there is a significant risk of damaging the touchscreen. Damaging it, you will no longer be able to use the screen normally, dialing a message or simply answering a call will no longer be possible. Such a smartphone is absolutely useless. That is why it is necessary to calibrate the screen in order to fix any problems. However, not all so simple.

To begin with, you should make sure as much as possible of the state of the sensor's sensitivity. To do this, remove the protective film, if any, and try to type some letter.

If touch recognition is not correct, 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 the version of the Android operating system.

Today we will look at all kinds of calibration methods for 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 for users, the Android OS developers have added the ability to carry out 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 the 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 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, the calibration can be performed again.

We carry out the procedure through the engineering menu

If you are not very familiar with smartphones, then for sure you hear about this setting mode for the first time.

The engineering menu is a treasure trove of the most varied configurations of your Android. Once in it, you can access all available configurations. This mode is suitable for users who like to completely customize a particular device for themselves.

So, what does it take 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 right depends on the smartphone itself.

If suddenly nothing happened, then in order not to suffer with the input, you can simply download special application from, it is called MTK Engineering Mode Start. With it, you can perform various manipulations with the phone.

Closer to the point. Here we are in engineering menu... Now you need to do the following:

Using apps

There are many programs that are designed specifically for performing 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 of these 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 site, information about this is freely available.

Designed primarily for tablets. The procedure is carried out using the same test, but in addition, it can significantly increase not only the accuracy of touch recognition, but also improve overall performance as well as efficiency. This program indispensable for some Android tablets with handwriting or drawing functions.

The interface is designed in such a way that you can figure it out at an intuitive level, there are no complex settings, the most ordinary user can figure it out.

Able not only to calibrate the touchscreen, but also to measure the tilt angle, tilt height, as well as the tilt of the object relative to gravity.

Calibration android screen, or rather a sensor, is a typical task, it can be done through the engineering menu. Actions that relate to the wording - calibration of the android screen include setting up the touch-type display in order to properly execute commands by the device by touching the sensor with a stylus or fingers. Without carrying out such a setting, the device will work, but at the same time there will be a number of undesirable consequences during the operation of the gadget.

Individual owners of devices on operating system Androids that are equipped with touch screens can sometimes face the unwanted problem of "disobeying" the screen. In other words, when you touch with a stylus or a finger at a certain point on the touchscreen, the gadget perceives it as a completely different command.

Or there are situations when the sensor only executes commands after the third or fourth attempt. As a rule, the cause of these problems is incorrect work the screen itself, for which it is necessary to calibrate the touchscreen of the device.

Urgent and correct calibration of the touchscreen for android may be required in almost all cases, if the smartphone has fallen from any height, and after accidentally hitting the device in the aquatic environment this procedure is mandatory.

Also, the calibration of the sensor on the android will be required after repair work to replace the screen, the appearance of a water stain under the glass of the screen and after other seemingly minor damage suffered.

To check the need for this procedure, you must perform the following actions:

1. Remove the special film protecting the screen (to ensure the most correct operation of the sensor);
2. Enter any letter or number;
3. If the button pressed on the screen of the gadget does not match the typed information, the touchscreen setting is necessary.

Basic Calibration Methods

Two methods are used to bring the sensor-sensor knocked out of its normal position into conformity.

These basic methods include:

• Using special programs for the android system;
• Self-correction.

It should be noted that for many brands (Samsung, HTC, Nokia and other Android devices), the calibration steps are practically the same and are identical.

Android device manufacturers generally have two types of sensors:

• Resistive (with a screen made using this technology, all sorts of problems very often arise, therefore, setting is more in demand here, but such screens are practically not used today - these systems can be seen only in budget or already outdated models);
• Capacitive (used in most gadgets, it is more reliable and of high quality).

Calibrating the touchscreen by means of android

In the absence of access to the assortment Google play the display of an android device can be configured in another way without any problems.

A step-by-step instruction in this case may look like this:

1. Go to the gadget in the "Settings" menu;
2. Select the item "Phone settings;
3. Find the inscription “Calibration, press the button;
4. A cross target will appear on the screen, which has a dot inside;
5. Click in this center the appeared target at least three times.

After the performed actions, the device will independently make a memorization of the touches. Thus, the calibration will be considered complete. After completing the setup procedure, it is necessary to check the operation of the touchscreen by the result of pressing a certain symbol on the screen, which should appear after its introduction.

Android screen calibration apps

The sensor can be adjusted using special software. In free and free access on the Internet there is the necessary software in order to successfully carry out this process.

The programs are quite simple to install and operate. But the most important thing is that practically from the use of any of them, you can get a positive and effective result. On the Google Play store, you can find free software apps such as Bubble and many others.

Application
The most popular screen calibration app on Android. Just a few taps on the smartphone screen and the screen is calibrated - you just need to restart your phone and enjoy the precise operation of the device's touchpad.

Application
This program has an excellent interface, it also has some additional special abilities... Advantages of the application:

• Bubble is freeware;
• Works great with tablets and smartphones;
• Advertising is disabled in the settings, or it can be left to encourage developers;
• Great graphics;
• The presence in the application of a special display that displays the tilt angle with the highest accuracy in fractions of a degree;
• Ease of use;
• The ability to fix the angle by gesture or click;
• Availability sound signal at zero angle position;
• If necessary, the ability to lock the screen orientation (horizontal or vertical);
• The ability to reinstall the application to the SD card;
• Disabling, if necessary, the "sleep" mode during the operation of the program;
• Usage full screen mode.

Using the program is completely simple. To do this, after the initial launch in the settings, select the type of device screen orientation (or set the "Auto" mode) and calibrate by level.
For this purpose, the phone is installed horizontally and the calibration button on the left of the screen is pressed for a short time. The touchscreen should show - "Calidbration", and then - "Wait". The application will be ready for operation when a zero degree value is viewed on the screen.

The application is a program that allows you to adjust the parameters of the screen of a touch device, while increasing its sensitivity and efficiency. Advantages:

• Using protective film on the touchscreen this application allows you to significantly improve the sensitivity of the sensor;
• The retarding effect from the use of a protective film is eliminated;
• When using such a device as a stylus, a kind of tuning of the gadget becomes simply necessary with the help of this program. Using this application, you can turn on the complete disregard of even touch from the palm (after setting, the hand can rest on the screen when using the stylus);
• If necessary use different settings you can create separate shortcuts to quickly launch the application;
• The app has a free version.

The program is a professional tool for fine tuning the level in the iPhone or iPodTouch. The application is used for common tasks or in more complex applications where the tilt of the device needs to be measured accurately enough. Advantages:

• The possibility of full-screen mode, which allows you to switch by clicking on the lower and upper arrows located in the middle of the gadget screen;
• Expanded two-sided calibration, allowing adjustment on surfaces that are far from level. Each direction is calibrated separately in order to obtain the required accuracy;
• Free download;

Potential Calibration Issues

In the event that, nevertheless, the device is not calibrated by the method chosen for this purpose, or the application used does not give the necessary positive changes, then experts recommend trying another program, since there are a lot of them developed, the software in this direction is very diverse. You can also try "Hard reboot" or, in other words, reboot the device.

The last option for calibration is to contact service center... A similar problem with the device's screen may lie not only in incorrect settings, but also in more serious reasons. In particular, in the hardware breakdown of the elements of the device or in the presence of a factory defect. V this case it is more expedient to contact specialists to troubleshoot the malfunction.

It should also be noted that, together with screen calibration, the gadget may need to check and adjust the screen sensitivity parameters for its subsequent high-quality operation.

Power Clean is a popular tool for optimizing the performance of Android devices. The main characteristic feature of this cleaning wizard ...

Android smartphones and tablets have a similar problem for many users. ...

The rapid change in the dollar exchange rate has led to significant mobile gadgets. Today it is much more difficult to acquire new smartphone with decent technical characteristics, which is why more and more people are putting off their purchase for later or buying used devices. However, when buying from hand, there is always a danger of purchasing a device with breakdowns or a factory defect. In this article you will find all necessary tools to help you avoid the hassle of buying a used smartphone or tablet under Android.

How to check the screen for dead pixels and other problems

The screen of a gadget is one of the most vulnerable parts of it. Determine the presence of cracks, chips, abrasions and others physical damage can be done with a careful visual inspection. But to identify defective pixels and problems with tach will have to use special programs.

Display Tester

Various screen problems can be detected with this program. mobile device, including defective pixels or traces of the gadget being in the liquid, which are detected only with the help of a special test. In addition, the program will provide you with much more detailed information about the display used than you can find even in the most detailed technical description.

MultiTouch Tester

This program is well known and used by all testers of mobile gadgets. It will simply and visually show you how many simultaneous taps your device's touchpad supports. Particular attention should be paid to this parameter if you want to check if they are trying to sell you a cheap fake under the guise of a branded device.

Yet Another MultiTouch Test

A much more powerful utility for checking the operation of the sensor, which allows you not only to find out the number of simultaneously recognized touches, but also to identify the "dead" zones of the touchscreen, if any. To do this, the program has a Paint Tester mode that allows you to draw on the screen. Just draw a grid on the screen and immediately see if all of its zones have the same sensitivity.

How to check if Wi-Fi is working

Today, quite often you come across devices whose designers are striving for a spectacular appearance the gadget neglects the mandatory requirements for the layout of the elements. For example, they shield the antenna of the wireless module with a beautiful metal edging, as a result of which such a smartphone or tablet can only work in the immediate vicinity of the router.

Wifi Analyzer

Wifi Analyzer will give you the opportunity to evaluate how your smartphone or tablet "sees" wireless networks and how well the corresponding path of the device is assembled and configured. In addition, you can at the same time find a free channel and determine the zone in your house in which the signal reception is the most confident.

How to find out the speed and accuracy of the GPS system

One of the most common problems that you may encounter after purchasing a used gadget is the slow determination of your location. Accurate and quick determination of your coordinates depends on many parameters, including the chip used, Android version, firmware and even the country of manufacture of the device. Therefore, we recommend that you pay special attention to this aspect when purchasing.

GPS Test

Main testing program GPS work which should be installed on every smartphone. It will give you the opportunity to determine the time and number of satellites with which the device can establish a connection, the accuracy of determining the coordinates, the ability to work with different systems Geolocation, stability of satellite capture and other important parameters.

AndroiTS GPS Test

A worthy competitor to the previous program, which has roughly similar capabilities. In addition to testing all the parameters of the smartphone with satellite systems Location, it can be used as a regular tracker, as it has the function of recording your movements and can work not only with GoogleMaps, but also OpenStreetMap, BingMap and Yandex.Maps.

How to determine the health of the microphone, accelerometer, proximity and light sensors

Modern mobile gadgets acquire an ever more extensive set of sensors and sensors every year. Some of them are used only in certain situations or are necessary for the operation of certain programs, so their breakdown or absence may not catch the eye of an inattentive buyer right away. For a complete check of all sensors of the device, several special complex programs are available.

Sensor List

This program displays a list of all sensors that are in the device, as well as graphs of their values ​​in real time. You can check the operation of the accelerometer, magnetic field sensors, orientation, temperature, illumination, and so on, tracking changes in the signal coming from them depending on changes in external conditions. V latest versions support has also been added for checking the battery status (temperature, voltage and percentage of charge). The Sensor List is ideal for showcasing your new phone's capabilities, as well as diagnosing hardware after a system update or restore.

Sensor Box for Android

If the graphs from the previous program seemed too boring and incomprehensible to you, then Sensor Box for Android will help you test the gadget's sensors in a more visual way. In fact, we have before us a collection of small utilities, each of which is designed to check one of the properties of a mobile device. For example, when checking the gyroscope, you will be prompted to roll a ball on the screen, the orientation sensor is tested in a virtual level, and the light sensor is demonstrated on a houseplant drawn on the screen.

Elixir 2

This is a real test lab for smartphones and tablets running Android. It will help you collect the most complete information about the sensors available in the device and their health. In addition, here you will find complete data on running processes, installed programs, operating system, shared libraries, and more.

The main feature of the application is the ability to create special widgets on the desktop that can show the change in the parameter you need in real time. A complete list of all the features of Elixir 2 would require writing a separate long article, so we recommend that all users who need the most detailed information about a mobile device, be sure to pay attention to this program.

Of course, the best helpers when buying a used gadget from your hands are your attentiveness and common sense. Resist the temptation and remember that things that are too cheap tend to be too expensive afterwards. We hope that the programs presented in this review will help you avoid mistakes and finally make sure that your choice is justified.

- extremely useful utility, which comes in handy at the moment when your screen is not calibrated and starts to glitch. So be sure to use this utility if you are experiencing problems with the touchscreen or other features of the screen. This is where the developers tried to make all possible tools so that you can debug your own mobile device.

That is why the program turned out to be so interesting and will be able to help in various situations. Moreover, it can debug the screen even when other applications will no longer help. Therefore, users liked the application so much, because it really helps to customize the screen. The developers periodically update the program, so it only gets better.

The many adjustments that will help you adjust the screen don't confuse users at all. Read user reviews. All of them are enthusiastic about the program and ask for more features. If you like to create something original, then this application will help you with this. Creative people will definitely love this synthesizer.

As a result, it turns out that - high-quality software in which users can find unique options for debugging the touchscreen of their own mobile device. Moreover, the program does not distinguish between smartphones or tablets.