The sensor is not working in one place. The sensor on the phone does not respond - what to do? Software failure

A touch screen phone is a very functional and convenient thing. However, the more high-tech the device, the easier it is to damage it. The sensor (touchscreen) is the “Achilles heel” of modern gadgets, because it is very fragile and is constantly subject to mechanical stress. Careless users can place a bag on it, sit down, flood it, or even throw it against the wall in a fit of anger. And now the long-suffering phone comes to a point when the touchscreen sensor no longer responds to finger touches. What to do if the phone no longer obeys its owner?

There are many reasons why touchscreen does not respond to touch. The main triggers are hardware damage, which can only be diagnosed and repaired at a service center.

What to do if you have The touchscreen on the phone does not work:

First, pay attention to the neatness of your phone. Dirt or oil stains may cause the touchscreen to respond incorrectly to user touches. Therefore, do not be lazy to regularly wipe the screen with a microfiber cloth. This simple cleaning can get it back into working order. In addition, make it a rule not to handle your phone with dirty or wet hands.
An incorrectly installed protective film may be the reason why the touchscreen does not respond to finger touches. This happens due to air bubbles and dirt collected between the surface of the touch screen and the film. To solve the problem, you need to re-stick the film.
Sometimes the touchscreen does not work because the signals received by the device may not be perceived correctly. In this case, a reboot or reset is enough to bring the system back to life.
Carefully inspect the screen for cracks. Even small cracks can cause... As a result, the touchscreen partially responds to touches only in certain areas. The only way to restore your phone to full functionality is to replace the sensor on your phone at a service center.
If the touchscreen on your smartphone does not work, this may be due to a breakdown or malfunction of the sensor control chip. As a rule, failure of the microcircuit occurs due to shocks and falls. This can also be caused by moisture penetrating into the housing. Replacing the microcircuit with a new one will help solve the problem.
In addition to everything mentioned, part of the touchscreen on the phone does not work due to the breakdown of various components. For example, failure of a printed circuit board or its components due to moisture penetration, physical or mechanical stress may result in loss of functionality. Only a complete diagnosis will help determine what exactly has gone wrong.

As practice shows, in cases where the sensor on the phone does not work, the problem lies in the touchscreen. According to statistics, in 90% of cases, replacing the glass on your phone will help restore full functionality. And only in 10% the reason lies in other details.

Remember:

If your touchscreen doesn't work, don't try to repair your phone yourself so you don't have to buy a new one later. Replacing the glass on a phone should only be done at a specialized service center using original parts, since counterfeits quickly become unusable and cannot be repaired.

The site's service center technicians will promptly identify and efficiently fix the problem at an affordable price.

If your smartphone screen stops working properly, you can try to solve the problem yourself. First, you should find out what caused the breakdown and what options are available to correct the problem.

Why the touchscreen or touch buttons may not work

If the sensor on your smartphone stops working, the cause may be physical impact or a software failure.

Options for harmful physical impact:

a strong blow or fall from a height;
contact with liquid;
sudden temperature change;
dents, scratches and cracks on the screen;
unsuccessfully applied film or protective glass;
serious pollution.

Options for software failures:

overloading the operating system with a large number of applications;
incorrect operation of some programs;
changing smartphone settings;
incorrect recognition of touches by the sensor;
inappropriate or unstable firmware.

5 Software Ways to Fix Problems

Reboot

If the sensor partially does not work, download the Rebooter application, which will help you quickly reboot the device. If the sensor is completely unresponsive and your smartphone has a removable battery, simply remove the battery for a couple of minutes.

With devices that have a non-removable battery installed, you need to do things a little differently.

Owners of Xiaomi, Meizu or Digma devices can hold the on/off button for 20 seconds or longer and the smartphone will reboot or turn off. If you have a Samsung or Sony, press and hold the power/lock and volume buttons simultaneously for 7-10 seconds. If it doesn't work the first time, try again, but hold the buttons longer. Owners of devices from other brands with a built-in battery should also try the options described above.

If pressing the buttons does not produce any results, wait until the battery is completely discharged and take the device for repair.

Removing the memory card and SIM card

Sometimes the memory card or SIM card is to blame for a touchscreen malfunction. To check this, turn off your smartphone and remove both cards. After rebooting, check if the problem persists.

Via Safe Mode

Turn off the device completely. Then press the power button and do not release it until the smartphone logo appears on the screen. After that, release and press the Volume Down button. Release it when the device boots up and “Safe mode” appears on the bottom left of the screen.

If no problems with the sensor are detected in safe mode, then the problem is in one of the applications that needs to be removed or updated to the latest version.

Hard Reset

This is a complete reset of the device to factory settings.

Instructions:

go to the “Settings” section;
select "Recovery, reset";
Find "Reset settings".

Before resetting your phone to factory settings, be sure to back up all important data stored on the device.

Display calibration with third-party programs

There are applications in the Play Market that can be used to calibrate the touch display, improving its performance. Reviewing all the apps would take too much time, so we'll focus on one of them that received the highest score from users.

TouchScreenRepair

This Android application performs two functions:

conducts testing and issues a report on which fragments are not used, why the accuracy is low and the sensitivity of the screen is poor;
corrects errors automatically.

The application has an additional function - it allows you to change the screen orientation. You can select an area that, when pressed, will trigger a response in a different part of the display.

How to fix if your device is physically damaged

TSP Dot Mode and TSP Grid Mode tests

To conduct this testing, you need to get into the engineering menu. To do this, dial the service code. It may be different for different phone manufacturers and models, try these options:

*#*#3646633#*#*
*#*#4636#*#*
*#15963#*

In the engineering menu, find two positions:

TSP Dot Mode - allows you to check the screen in “dot mode”. There should be a cross in the place where you touch the display.
TSP Grid Mode - testing takes place in “grid mode”. The screen is divided into several rectangular parts. When a particular rectangle reacts to touch, its color will change.

This testing will tell you where the problem is on the screen.

The developers do not recommend trying to repair the phone yourself, as this requires certain knowledge and experience.

"Tapping" along the perimeter of the screen

This is the easiest way to test the display, which does not require installing programs or other complex manipulations. Simply press your finger gently across the entire surface of the display, especially in problem areas. Start with light pressure and gradually increase. Then gradually reduce the pressure.

Launch the keyboard and press each key. Try moving application shortcuts across the entire screen. At the same time, pay attention to the sensitivity of each section of the display. Linger on the corners of the display, focusing on the bottom. Such testing will give you all the information about the sensitivity of the touchscreen.

Dry after exposure to moisture

If your smartphone gets wet, follow these instructions:

turn off the power;
remove the battery (for devices with a removable battery);
remove the SIM card and flash drive;
wipe the device with paper napkins or a cloth that absorbs moisture well;
remove headphones, cases, film or glass from the screen;
place the smartphone in a bag filled with rice. Leave the device in this position for 12 hours. During this time, the cereal will draw out all the liquid from the phone.

If the rice procedure does not give the desired effect, contact the service center.

Check the cables

A problem with the cable can be determined even without disassembling the phone. Sensor malfunctions are one of the signs of such a problem. Pay attention to the following signs:

the smartphone began to “slow down” during operation;
the device turns off when you unlock it;
The camera malfunctioned.

If, in addition to the problems with the sensor, the above problems also appear, then there is definitely a problem with the cable. But you shouldn’t repair it yourself, since this requires a good understanding of the smartphone’s structure.

Replacing the sensor

If your smartphone does not use OGS technology, you can try replacing the sensor yourself. To do this you will need the following tools and accessories:

a set of small shaped screwdrivers (available on sale especially for smartphones);
mediator, spatula, plastic card;
silicone suction cup with ring or loop;
regular hair dryer;
glue B-7000 or equivalent;
thin rubber gloves.

Operating procedure:

Disassemble your smartphone.
Warm up the display with a hairdryer around the entire perimeter to a temperature of about 70-80 degrees. Use a suction cup to pick up the heated screen and pull it off the body.
Install a new sensor. Prepare it by removing the protective film from the inside. Apply a thin layer of glue over the entire area of the seating surface. Place the sensor in place and press it gently. You can place a small, flat object weighing no more than 300 g on top of the screen so that it sticks better.
You can collect the phone. Connect the cables, fix the internal threaded connections and install the external parts of the housing.

If you are not sure that you can cope with replacing the sensor yourself, take the phone to a service center. Repairing the device yourself will void the smartphone warranty.

How to save data when the display is not working

If your smartphone screen has completely stopped working and you want to save the files on your phone, you will have to use a regular PC and a special program.

Broken Android Data Extraction

iSkysoft have developed a program that allows you to save or restore necessary information from broken phones. To do this, install the Android Data Extraction application on your computer and follow the instructions.

Instructions

Connect your smartphone to your computer using a wire.
Open the program, section “Data extraction” (Damaged devices).
Select the file type to recover.
Indicate the current state of the smartphone: a) “Sensor does not work”; b) “Black/broken display.”
Enter the smartphone name and model. Then click "Next" and "Confirm".
Turn off your smartphone.
Continue the process of saving data on your computer.

The touch screen of modern smartphones is quite fragile, so it can easily malfunction. You can always try to restore the touchscreen yourself or send it in for repair if the breakdown turns out to be complex.

Despite the fact that the operating system, like the shell, is thoroughly tested, they contain hidden errors that appear under rare circumstances.

The solution to the fight in this case will be simple. If the reason for the lack of response of the sensor to the finger was a program malfunction, rebooting will solve this problem.

Poorly written application

Not all programmers who create applications for Xiaomi are geniuses; there are also illiterate people among them. As a result, the program heavily loads the video chip, so that it does not have time to process data from the screen sensor, as a result it seems to you that the phone does not respond well to gestures, although in fact there is nothing wrong with the screen - the problem is created by the application.

Remember if you installed any program some time before problems with the display occurred. The purpose of the program does not matter, what matters is the fact that it is installed on the phone.

Pay special attention to widgets, if they are written by an incompetent programmer, they can “” the phone during normal operation, without signs of intensive use of the phone.

If indeed some program has been installed recently, then watch Xiaomi work for a couple of days. If the touch screen malfunction does not recur, then with a 95% probability the application was to blame.

Screen calibration

In rare cases, the screen sensor calibration fails; the first symptom of this disease is incorrect recognition of gestures and touches on the screen.

When typing text, you click on the letter “A”, but instead of it, the “P” next to it is displayed on the screen. This means that the sensor is working, but it is not calibrated.

To perform calibration you need to install the application from the Google Play market. Go to it and enter in the search bar "Screen calibration", then select the application you like and launch it.

After calibration, restart your phone and check gesture recognition.

Settings error

I found a mention online about one tricky setting in Xiaomi, which can lead to problems with the sensor.

To check it, go to general settings, find the item, enter it.

Now we need a menu "Specialist. Possibilities".

In the list of options, find the item "Press and hold delay", its value should be "Small". If it's different, change it. Then reboot your phone.

For many users, changing this setting returned the sensor to normal operation.

It is running Android. The touchscreen (sensor) works on its own, it works some time after pressing, it is dull, lags, and does not work correctly. What to do and how to fix it?

Many users encounter a problem when phone or The Android tablet starts acting up. It seems that it didn’t fall anywhere and wasn’t “watered” with anything, but it doesn’t work as it should.

For example, the device has problems with a touchscreen, i.e. touch input (“sensor”) does not work correctly. The reason for this may be:

1st: Software glitch- i.e. the problem is a software glitch

2nd: Hardware failure- i.e. the problem is in the hardware (i.e., replacement or restoration of spare parts for the gadget is required)

However, do not rush to get upset - in 90% of cases there are problems in the operation of touch input (touchscreen) smartphone or Android tablet is to blame software glitch which you can easily fix on your own.

Fixing a software glitch:

Method 1. Quite simple - go to "settings", find there "backup and reset", in which you choose full reset settings with deletion of all data. Be careful, using this method is often effective, but it entails deleting all photos, contacts, passwords, music, games, videos and, in general, all information stored on your smartphone e or tablet e. Therefore, first save everything you need by connecting the gadget to your computer. If this method does not suit you, or if after this the problem is not resolved, see Method 2.

Method 2.

Based on solving touchscreen problems phone number and tablets based on Android by introducing additional software. Utilities that control all processes inside gadgets. Today, there are quite a lot of them, however, the fewer functions an application contains, the more effective it is, as a rule. The best way to monitor system functions, corrects, and correct all possible settings and synchronization errors is a small, easy-to-use, free utility for Android-based devices. You can download the application from Google Play and see its additional options in the description. After installing the application, all that remains is to launch it. Further, in principle, nothing more is required from you. The application will take full control of the device's functions. (By the way, among other things, the gadget will begin to charge 20% faster, and its performance will also increase significantly, which will affect the loading speed and operation of all applications, games, and the system as a whole. On average, after scanning, the system runs at 50% faster.)

In addition, it is worth cleaning the system using a NORMAL antivirus. Best suited for this task Kaspersky antivirus , which you can download. Unlike the “multi-cleaner”, the Kaspersky Lab software is paid, therefore, if you do not have the opportunity to install such protection, you can skip this step...

Method 3.

Changing the device software, or as it is also called "re firmware". This method, as a rule, requires certain skills and can be solved by contacting the Service Center. To carry out this task yourself, you need to contact the website of the manufacturer of your device, download the utilities necessary for flashing the firmware and the firmware itself, and then reinstall it on your gadget.

If none of the methods brings results, unfortunately, you will have to contact the Service Center for repairing your tablet a or smartphone a.

The touchscreen (sensor) on an Android phone or tablet does not work well. The touchscreen (sensor) works on its own, it works some time after pressing, it is dull, lags, and does not work correctly. What to do and how to fix it?

Before you try to figure out what to do with a non-working touch screen, you need to understand the reason for what happened. If this is not done in time, the situation can only worsen. For example, if the problem is an incorrect setup, changing the display and matrix will not solve the problem.

Why does the screen not respond to touch?

Let's look at some of the most popular reasons for the touch screen not working correctly, and also tell you how to correct the current situation.

Display damage

Physical damage to the display is probably the most popular reason for a malfunctioning touch screen that has stopped responding to touch. Even a slight drop or damage to the screen could cause it to stop working correctly. There are also cases when someone sat on the phone or tablet, causing the display to be damaged.

In such situations, the most effective option is to replace the display, as well as repair the entire screen if it is visually damaged. Naturally, solving such problems yourself by changing the matrix or the entire display is the worst idea, especially if you have no experience.

As a result of such manipulations, you can not only void the warranty that was originally on the equipment, but also worsen the problem. Contact the service center, where they can advise you and provide all possible assistance.

Moisture ingress

Most often, water that gets on the screen does not lead to dire consequences. Many users have accidentally knocked over a cup of tea or coffee, after which they quickly wiped down the equipment, and it worked as if nothing had happened, but this does not always happen. If moisture has been on the touch screen for too long, it can lead to dire consequences, for example, damage to the display and matrix - one of the most expensive parts in a tablet or smartphone.

The best solution in this situation is to try to dry the screen quickly, using something that can absorb moisture. Many users simply “drain” the water from the screen, thinking that this will work just as well, but such methods can cause the worst to happen.

Moisture can get under the screen, which will lead to more serious damage not only to the screen, but also to other components, such as the motherboard.

Screen dirty

Too much dirt on the screen may well cause it to stop working correctly. Dirt can penetrate very deeply, which can lead to dire consequences. Despite this, quite often this problem can be solved by simply cleaning the screen using damp disinfectant wipes. In addition, we recommend using such wipes from time to time so as not to break the screen due to contamination.

Incorrect setting

Due to the fact that most smartphones and tablets are provided to customers with a pre-installed operating system and all the settings, many readers may not have known that incorrect screen settings could also be one of the reasons for its malfunction. If you encounter this, do not panic, because this can be solved by several system programs. The most difficult thing for an inexperienced user may be to determine the source of the problem with incorrect settings. Even the debugging mode does not always help, because the system menu is almost always designed to work without a touch screen, working exclusively from the physical volume and power buttons. Therefore, if you are faced with the fact that you just recently bought a smartphone or tablet, and the touch screen on it does not work, do not discard the reason for the incorrect touch screen settings.

Incorrectly applied screen protector

Screen protectors, be it extra glass or something similar, can be detrimental to touchscreen performance if not placed correctly on the display. If this work was carried out by amateurs or people without much experience, after a while the sensor on your screen will stop working correctly or will not respond to touches at all.

Determining the origins of the problem in this case is quite simple: you need to ask specialists to remove the protection or do it yourself, if it is possible to do it safely. Check the screen operation with and without protection. After this, it will be enough to purchase higher quality glass.

An excellent option for this would be the well-known Gorilla Glass model, which not only effectively protects the screen from any impacts, abrasions or cracks, but also does not conflict with the sensor, so problems with screen sensitivity do not arise even over time.

Important: be sure to ask specialists to glue the screen for you. Learn from the mistakes of others, not your own, because incorrectly applied protection to the screen can even lead to damage to the display.

Sudden temperature change

Residents of cold regions of Russia are probably familiar with a similar problem - a non-functioning touch screen after going outside. Yes, we may not often encounter such a problem, but still, it is often temperature changes that can affect the sensitivity of the touch screen. One of the most “peaceful” reasons, because to fix it, it’s enough to have a little patience so that the display and specifically the touch (touch part of the screen) gets used to the temperature.

Be careful: you do not need to heat the screen using any special means, such as a hair dryer or something similar. It is strictly contraindicated to hold the phone screen above a heat source, such as an open fire. Yes, this advice may seem obvious to many, but experience shows that there are still users who want to do the best, but it only turns out worse.

Your attempts to artificially bring the screen from a cold state to a hot one will only aggravate the situation, without bringing you closer to the normal operation of the wheelbarrow. It can also damage the internal components of the screen, causing it to no longer work correctly.

Virus program

Malware is another reason why the screen stops working. More precisely, the screen and touchscreen itself work great, however, the blocking program does not allow the user to carry out the desired action. Dealing with this can be quite difficult without the help of specialists, since it is likely that to resolve this issue you will have to completely reinstall the operating system on your smartphone or completely reflash the phone. If you have not carried out such procedures before, we recommend spending money on specialists who would help you.

You can catch a virus by downloading applications or music from unverified sources. If you use the Play Market, then the chances of downloading a fake application are significantly reduced, but even in this case, be extremely careful. To protect yourself from such applications, look at the reviews of those who have already downloaded this program or video. If you are using a new site, read about it on the forums to determine whether you can trust it to keep your device safe.

Matrix cable failure

Have you tried to fix the screen yourself by disassembling your phone? A lot of novice “technicians” have encountered this problem. Inept repair of a small problem may well lead to a larger problem that will have to be solved with the help of specialists, spending a lot of money on them. If you want to quickly change something, while saving on skillful hands, think about whether it's worth it. Most often, technicians charge little for small and uncomplicated work, but a broken cable may well lead to the need to replace the entire motherboard or resolder it, which will also cost a pretty penny.

Do not think that if the matrix cable is damaged, it will not be difficult for you to quickly resolder it. Service centers are always ready to provide their clients with qualified employees who can reliably repair equipment in the shortest possible time.

Operating system crashes after update

Modern operating systems suffer from the fact that their new updates are not always stable, and may in some way worsen the performance of certain components. While it's rare for touchscreen-related issues to cause your operating system to crash after an update, if this happens, you'll simply need to roll back to the previous version of the OS, which is often referred to as "stable."

Of course, this can be difficult to do without a working touch screen; most devices support connecting USB devices such as a mouse or keyboard. If you do not have an OTG cable, which is an adapter between MicroUSB and USB, ask for help from specialists in hardware stores. Most often, they are ready to provide their clients with this tool for a few minutes. You can always say that you want to test it before you buy it.

What to do

After analyzing the most popular reasons, we move on to solving this problem. At the end of the list of the most effective solution methods, we will provide a small table that will show which method is most suitable for which problem. If some of the reasons cannot be attributed to any method, then their solution method was described above.

Full reset

If the problem has not physically damaged the screen, there is a high chance that a factory reset will fix the problem. But how can you do this on a stock Android device?

We connect the mouse using an OTG cable. Since the standard method of controlling a smartphone or tablet is not suitable for us, we need to look for other methods to control the device.
Go to “Settings”.
Next – “Advanced settings”.
Go to the “Backup and Reset” tab.

We look for the “Reset settings” item, which is most often located at the very bottom of the descent.

Select and confirm the changes.
If necessary, we make a backup copy of the data, however, if the problem is virus software, resetting the settings may not help.

Resetting the settings can also be done through the engineering menu. In order to get into it, you need to press a special combination of physical keys (volume and power buttons) when the operating system starts. Since listing all the models and brands here will be too long, use the Internet to find out how to get to the engineering menu on your phone. After that, select the desired item using the volume keys, confirming the selection using the power button. In the engineering menu, look for an item called Factory Reset, which will reset all settings to factory settings.

Cleaning your mobile phone screen

One of the simplest methods that you can do even with your own hands without the help of specialists. All you need to clean your mobile phone screen are special wet wipes that can be bought at hardware stores. Despite the fact that they are a little more expensive than regular ones, they are much better at cleaning touch screens from dirt or anything like that.

Cleaning should consist of two stages:

The main stage where you clean the screen from dirt using the wipes mentioned above
The second stage, during which you need to wipe the screen with disinfectant cloths, which are sold in the kit. This is necessary in order to remove moisture from your device. Cleaning the screen can be useful not only when the screen gets dirty, but also after moisture gets on the screen.

Mobile phone screen repair

Before repairing your mobile phone, make sure that the reason for the non-functioning touch screen is due to physical damage. Of course, if you replace a display or element that you think is not working, nothing bad will happen, however, you will waste your money, and the problem will not go away.

Be sure to use the services of a specialist who can efficiently and reliably repair the screen - one of the thinnest and most delicate parts in a smartphone. Working with the matrix requires not only skills, but also experience, so before you send your device to a service center for repair, make sure that its employees have received a certain certificate.

Mobile phone display replacement

Replacing a display is a very expensive process that should be entrusted to real professionals. Even if this is not your first time repairing devices and you are familiar with the equipment, official service centers from your brand will do everything efficiently and will cover the costs associated with repairs and replacements. This method is the most radical and expensive, so we recommend using it only if the problem cannot be solved by repair.