The sensor on the phone is not working correctly. Touchscreen calibration on Android phones and tablets

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Ergonomic touch devices have arrived. What has changed with the use new technology? Yes, almost everything related to management functionality. Therefore, the tricky situation when the sensor on the phone does not work requires immediate resolution. Moreover, in some cases, the user has every chance to make repairs on his own. However, we read about this and much more below.

Why did the sensor stop working?

There can be an incredible variety of reasons. Despite the high technology, in most cases the control element is fragile and quite “picky”. The functional abilities of such a modern “miracle” are completely dependent on a variety of influencing factors:

weather conditions,
mechanical damage,
contact with conductive liquid.

A software glitch or spontaneous system failure can also be the culprit for the fact that the sensor on the phone does not work. Of course, all these disadvantages are conditional, because it plays a major role in the life of the mobile device being used. The performance of the device and its operational efficiency depend specifically on our actions.

Common touch screen problems

Mechanical damage most often leads to various breakdowns. Falling and deformation are unique champions of the common excuse: “I didn’t do anything, I was just riding in a crowded minibus” or “It’s not my fault that it’s so slippery.” The consequences of impact and excessive pressure on the device can be different. From an innocent chip on the case cover to the cobweb-like pattern of a cracked display. The case may endure, but the touchscreen and screen will need to be replaced. If the sensor on your phone does not work, you should pay special attention to the structural parts of the mobile phone. In the case when the body part of the device moves away from the touchscreen and you visually see a gap formed or find that it has moved, you need to install the parts in place. Sometimes a smartphone loses its sensor functionality due to a small amount of liquid getting inside the gadget. Moreover, you often have no idea how water ends up in the depths of the device. Although you should know that condensation will choose the most unfavorable moment to show its destructive abilities. Check contact pads and connector sockets for oxidation. Physical defects: screen flickering, image distortion and other non-standard manifestations in the phone’s operation may indicate that the device needs emergency repair. Procrastination and delay in seeking professional help is not in your best interest...

What you're capable of: doing it yourself doesn't mean it's counterproductive

If the sensor on your phone is not working well, first calibrate the touchscreen. Usually this function available in the main settings window of your device. Such actions are carried out when the device is clearly in good working order, when the body is intact, no signs of deformation or oxidation are found, and the sensor reflects the glare of light with an impeccably smooth surface. If the forecasts are not entirely rosy, you will have to reincarnate as a repair engineer mobile devices. Since subsequent actions require certain skills and specific knowledge.

Removing oxide and positioning the touchpad

Arm yourself with a special (mobile) tool: Phillips and flat-head screwdrivers, an unnecessary plastic card (bank or other type). Prepare alcohol, a clean toothbrush, an eraser and regular table napkins.

In conclusion

If all your manipulations have a favorable outcome, your touchscreen should work. If everything remains unchanged and the sensor on the phone also does not work, then only replacing this component of the control system will help you. What is not recommended to do at home? Therefore, you cannot avoid a visit to the workshop. Take care of your sensor!

Like any device, sooner or later the phone begins to break down and fail. Exists large number problems that may arise 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.

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 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 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 the “Display” or “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 is 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.

Android touchscreen calibration via the engineering menu

On Android devices there is special menu, thanks to which you can do many things that are not possible in normal mode.

First you need to enter the menu. To do this, dial one of the special codes in the place where you usually enter phone numbers - *#*#3646633#*#*, *#*#4636#*#* or *#15963#*.

Go to the Sensor section.

Next, go to the Sensor Celibration section.

Click on the Clear Calibration button.

Click on the Do calibration (20% tolerance) button.

We leave from engineering menu by pressing the back button on your phone several times.

Via the Touchscreen Calibration app

In the Play Market you can find many applications responsible for screen calibration, one of them is Touchscreen Calibration.

In the Play Market we find and install the application.

We launch it from the device menu.

Click the Calibrate button.

We carry out the actions that the program suggests to do.

We receive a notification that the calibration was completed successfully.

Via the Quick TuneUp app

This application performs the same tasks as the previous ones, but in a different way.

Install the application from the Play Market.

Open it from the phone menu.

Click on the Display Calibration button.

We wait for some time for the process to complete, and then reboot the phone.

Video: how to increase or decrease sensor sensitivity

How to set up the accelerometer or G-sensor

Also, all modern devices have an accelerometer, which determines the position of the phone relative to a flat horizontal and vertical surface. This feature is used in many games, most often racing games where you control the car by turning your phone, and in some other applications.

Through a special application - GPS Status & Toolbox

You can calibrate the G-sensor using free application from Play Market:

Install the GPS Status & Toolbox application from the Play Market.

Open it and go to the “Tools” section.

Select the “Accelerometer calibration” section.

Place the phone on a flat surface, such as a table or windowsill. Click the “Calibrate” button.

We wait for the process to complete and receive a notification that the accelerometer has been successfully calibrated.

Via Engineering Menu

There is a second way to calibrate the G-sensor - through the Engineering Menu:

Dial one of the special codes in the place where you usually enter phone numbers - *#*#3646633#*#*, *#*#4636#*#* or *#15963#*.

Open the Hardware Testing section.

Go to the Sensor section.

Go to the Sensor Celibration section.

Click on the Celibration Gsensor button.

We go through the sensor calibration process and exit the engineering menu.

Video: setting up the G-sensor on Android

What to do if the sensor triggers spontaneously

Sometimes it happens that the screen at some points begins to press on its own. This can happen if the touch glass has been damaged, causing it to adhere too tightly to the display in certain areas. In this case, you need to take the device to the service center and ask to replace the glass with a new one. Touch glasses are divided into two types:

Resistive sensors are sensors that respond to changes in pressure, that is, they are triggered when pressed. You can work on such glass using your fingernail, stylus and other objects.

Capacitive sensors are sensors that only respond to finger touch.

If the screen no longer accurately displays what you want to do, then it's time to recalibrate the display. If the phone does not react correctly to changes in its location in space, then it is worth calibrating the G-sensor. And only if all the previous settings did not help, then you should think about changing the touch glass, which could be broken or scratched.

The wealth of options for using such devices leads to their gradual failure, and one of the common failure options is the dysfunction of the sensor on the phone, when the latter simply stops responding to presses (or reacts extremely poorly). In this article I will tell you what the reasons for this dysfunction are and what to do if the sensor on your phone does not work.

We figure out what to do when it stops working touch screen

Reasons for phone sensor failure

Let's look at common reasons why a phone's sensor fails. They may be as follows:

Random malfunction of the device;
There is a large amount of dirt and grease on the gadget screen;
The protective film on the device screen does not fit tightly enough to the screen (air bubbles are visible between the screen and the film, dirt, etc.);
The device has overheated due to various reasons, or has been subjected to a sudden temperature change;
Moisture got inside the phone, which led to oxidation of the contacts;
The sensor is physically damaged due to impact;
The sensor has moved or peeled off;
The SD card or SIM card is unstable;
The operation of any applications caused the device and the sensor of the mobile device to freeze;
The phone's memory is full, as a result of which the phone cannot correctly handle the touch screen;
The internal components of the phone have failed (board, cable, etc.);
Installing incorrect phone firmware led to problems with the sensor.

If the sensor doesn't work...

The sensor on the phone does not respond, what should I do?

To restore normal functionality of your phone's sensor, do the following:

Reboot your gadget. This often helps to effectively fix a problem with your phone's sensor;
Wipe the gadget screen with a soft, clean cloth (microfiber) moistened with an appropriate liquid for cleaning displays;

Clean your phone screen with a soft cloth

*#7353# - for most Android phones, especially Samsung;

In the menu that appears, select, for example, “TSP Dot Mode”, and by clicking in different areas of the screen, see which parts of the sensor are not polled, this can help fix the problem in which the touchscreen does not work.

If the device overheats, move it to a cool place and let it cool down;
Gently tap each corner of the screen a few times - this method has proven effective for many users;
If your protective film is not applied correctly (air bubbles, dirt, etc. are visible underneath), replace the protective film (contact a specialist for correct installation to the phone);

If necessary, replace the phone's protective film

Free legal advice:

If the device screen is significantly damaged, only complete replacement will help.

Restoring the sensor through safe mode

To boot into safe mode completely turn off the phone (including by removing the battery). Then, long press the Power button to turn on the gadget. When the Samsung, Nexus, LG, etc. logo appears on the screen, press the Power button and then hold down the Volume Down button. Press this button when your device boots up, and you will see the inscription “Safe mode” at the bottom left of the screen.

Calibrate your device if sensor functionality is not restored. To do this, you can use the appropriate applications, for example, “Touchscreen Calibration”;

Use the Touchscreen Calibration program to calibrate your device

Select "Wipe data/factory reset" to reset your phone to factory settings

Conclusion

If the sensor on your phone does not work, then I recommend using the tips I listed above. If it is impossible to identify the specific cause of the breakdown, I recommend taking your gadget to a service center - it is quite possible that your device will need a complete replacement of the touch panel.

Free legal advice:

Dmitriy 08.08..08.2017

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Hello. What should I do if my phone does not respond?

If under warranty, take it to service

Good afternoon Yesterday my iPhone 5s started to glitch, I can’t answer the call, I can’t turn the page, by the evening everything seemed to be fine. In the morning the alarm clock rang and that’s it, the screen does not respond to touches. what could be the reason. did not fall, was not exposed to rain, water, etc. Before this it always worked properly. phone 3 years old

Hello. More likely a software problem or a sensor in some place

moved away from the screen

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The phone's charger is dead. I put it on charge, and after turning on the phone the screen does not react to my touch. (The phone did not fall, no moisture got in.) The sound adjustment and screen lock button works. The phone works, but the touch screen does not. I completely formatted the phone, I thought it would help, but in the end nothing works. Lenovo S60-a. What could be the problem?

Somewhere the touch moved away from the screen

Hello, what should I do if half of the screen is broken and I can’t unlock it?

The screen assembly needs to be replaced

BQ Sydney phone. I always leave it on charge overnight. I picked up the phone this morning and the screen doesn’t respond to touch at all. I’ve already rebooted several times, to no avail. Please help. What should I do?

Free legal advice:

If under warranty, return it under warranty, since defects in these devices are a common occurrence.

I can't move the lock screen

Hello, the Sony C4 phone was spilled a little tea, the sensor periodically becomes dull, but after a reboot it works well, what could be the problem?

Hello! After replacing the screen on the seventh iPhone, the sensor sometimes malfunctions (replaced with the original). It seems to work normally, but periodically stops responding to touches. The reset button works. And the lock button too. After unlocking it starts working normally again. It's worth updating 11.1

Hello, the sensor does not respond to the Explay Phantom. The phone turns on fine and is charging. But the sensor does not respond. What to do?

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The phone does not respond to the screen, it chooses what to do. Stripes appear on the screen. Keep it in the cold for 5 minutes, after 5 seconds the stripes appear again, what should I do?

Firmware is not an option; we can’t go to a technician; we need the money urgently.

telephone asus zenfone go zc 500tg the sensor works for 15 seconds and then with 3 clicks on the screen the home button is pressed

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?

Many users encounter a problem when their phone or tablet is Android based starts to be capricious. It seems that it didn’t fall anywhere and wasn’t “watered” with anything, but it doesn’t work as it should.

Free legal advice:

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

1st: Software failure - i.e. the problem is the crash software

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 with problems with the touch input (touchscreen) of a smartphone or tablet based on Android, it is the fault software glitch, which you can easily fix on your own.

Fixing a software glitch:

Free legal advice:

Method 1. Quite simple - go to “settings”, find there “ backup and reset”, in which you select 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 or tablet. 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.

Based on solving problems with communication and network reception of phones and tablets based on Android method implementation of 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. Best monitors system functions, adjusts, and fixes everything possible errors settings and synchronization is small and easy to use, free utility for devices based on Android Multi Cleaner. Download the app from Google Play and watch it additional options in the description you can HERE. 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.)

Changing the device software, or as it is also called “flashing”. This method, as a rule, requires certain skills and can be resolved 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 to repair your tablet or smartphone.

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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? : 12 comments

Cool! I downloaded new software on Android and my keyboard and touch key stopped working. After installing and launching the cleaner program, everything worked!

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Thank you very much.

Thank you very much, you saved me from a lot of expenses! Thanks again.

Thank you. I installed the cleaner and everything worked!

Apparently, either my hands are crooked or I was unlucky. Although it helped many of my acquaintances and friends...

I’ll take it for repair to replace the touch screen 🙁

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Thank you! I have Sony Xperia Z Ultra. Her screen lived a life of its own, if you ran your sweaty fingers over it a little, or there were fingerprints on the screen, it opened everything chaotically, pressed everything on its own. Installed Quick Super Cleaner and that's it, the problem is solved. I don’t know what and how this software does, but it really fixed this problem.

Good afternoon How to install the program if the sensor does not work, I cannot enter the settings?

The second method helped. There was a problem - the function buttons did not work in unlocked mode. Sony phone Xperia Z5. Everything was fixed after installing the application. Thank you.

On the Samsung T311 planet, the touchscreen began to work only when the charging wire was connected. And then he lags horribly, you have to click on the same place 10 times. After installing this additional software, it began to work like new, it didn’t even start. I just downloaded it and rebooted it right away and it worked. A huge THANK YOU!

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On the Samsung T311 tablet, the touchscreen began to work only when the charging cable was connected. And then he lags horribly, you have to click on the same place 10 times. After installing this additional software, it began to work like new, it didn’t even start. I just downloaded it and rebooted it right away and it worked. A huge THANK YOU!

The sensor on the phone does not work: what to do

A touch screen device is functional and practical. Unfortunately, the reliability of such screens is low and the question of what to do if the sensor on your smartphone stops responding is very often asked on various forums.

Since the phone no longer has control buttons, all functions of the device are lost in one second. Troubles usually begin after the mobile phone is dropped or moisture gets inside, or it may stop working on its own, as happens with Chinese phones.

Reasons for the touchscreen not working

There are various reasons that can lead to such a malfunction:

Free legal advice:

The phone's memory is overloaded and the device does not have enough resources to process clicks.

In the video, the sensor on the phone does not work, what to do:

Display dirty

Over time, the sensor may become covered with fingerprints or grease. This leads to deterioration in the sensitivity of the touchscreen. You need to thoroughly wipe the screen with a special liquid and a dry cloth.

Unsuitable temperature conditions

A sudden change in temperature may cause the device to stop working.

The cable is damaged or has come loose

It provides a connection to the touch surface. You can solve this problem yourself with a small screwdriver if your phone is out of warranty. If you have a warranty card, of course, go to a service center.

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Due to moisture getting into the phone

When liquid gets inside the gadget, oxidation occurs. Try drying your device with a hairdryer.

Oxidation of contacts

This problem can be eliminated by careful cleaning.

Software failure

You need to reflash the device. To do this you need software and a USB cable.

The video sensor does not respond to:

How to reanimate a sensor at home

The very first thing to do is to restart the phone, while removing the battery and SIM card. Sometimes you need to reset your phone to factory settings. If a deep reboot does not help, then when taking further actions you need to understand all the risks and responsibilities.

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In some phones, to get to the buttons you will need to disassemble the entire body of the device, and for this you need to study the sequence of disassembling the device. Without knowing this, there is a possibility of damaging the device, and the cost of repairs will be much more expensive.

Armed with special tools, carefully remove the touch screen. After this, you need to carefully inspect the cables and connectors. The operation of all functions of the device depends on their integrity. If there is no damage, then simply disconnect the display from the board and connect it back.

Since the phone has already been disassembled, carefully wipe the dirty contacts on the board with a cotton swab and alcohol and put the phone back together.

This clever way makes it easy to put it in place.

When all the screws are tightened and the assembly is complete, you can install the battery and turn on the phone.

Free legal advice:

If after all the manipulations no changes have occurred, and the touchscreen still does not work, then replacing the touch glass will help you. What is extremely undesirable to do at home and here without service center can't get by.

You can find out how to find a person by photo on the Internet using your phone or tablet by reading this article.

Need to keep an eye on touch phone and handle more carefully than a push-button one.

Do not drop it and do not allow moisture to get inside, and then you will encounter such problems less often.

24 Comments on The sensor on the phone does not work: what to do

Hello! On my Samsung Grand Price, the sensor does not work well and the keyboard does not respond... it freezes when I press letters. I reset the data and reinstalled the most needed applications. At first the problem practically disappeared...now the same thing happens again ((The CleanMaster application deletes the garbage...There is a lot of free memory...What should I do? I would be grateful for the advice.

Free legal advice:

Try removing the wedge master

Wedge master remove a very harmful thing

Water got on my phone after some time and the touch keys and part of the monitor at the bottom stopped working. I decided to put the factory settings in the hope of reviving the sensor, but no, it didn’t help, now I’m stuck on choosing a language since the key is located at the bottom of the monitor. I don’t know what to do now. If anyone knows how to help I will be grateful. Redmi note 2 phone.

I broke the phone, but for the first 3-5 days it worked fine, but then it stopped working completely. I left it after a month, it started working again, but not the whole screen worked... then the keyboard stopped working, on at the moment he doesn’t react, I click on one point and he clicks on the completely opposite one... What should I do?

My Microiax phone stopped working, the sensor stopped working and for some reason the time was confused, usually when I turned it off before, it didn’t fluctuate, but now everything is confused, please help.

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It lags terribly and just recently the sensor started acting up. I can't answer the call. What to do? Resetting to factory settings didn't help much.

The sensor on my smartphone is not working due to moisture... I asked for a little water on it... dry it with a hairdryer, but it didn’t work... now it can only turn on and vice versa... please help... and the screen is covered with horizontal stripes every second or 2 .

I have Alcatel phone Onetouch does not respond to touch. I rebooted it using the House and Power buttons. It's all useless. What to do? Please help!

The same problem, it reacts to touches depending on the pressure, this is very inconvenient, after all, the smartphone is Android platform, and then there are problems with the touch screen.

Good afternoon Doogee Y6 stopped responding to touches! The phone is 3 months old. I didn’t fall, no water got in, I just lay on the sofa. I can’t reboot because I have to press confirmation on the screen and I can’t remove the battery. because it is not extracted. What to do?

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telefon rabotal a potom cherez neskolko minyt ekran stal ne rabotat.Bivaet na neskolko minyt ekran rabota et a patom snova i cherez 1 snova na seskolko minyt vklucha etsya.

Samsung Senser does not work only in the screen area A touch buttons back they work. can you tell me what the problem is? the screen shows

I have the same problem..tell me what to do?

Phone Samsung s 7262, the screen was accidentally pressed, the sensor began to glitch, when entering words without touching the screen, it happens that he presses the letters himself, you have to turn the screen off and on

Hello everyone, there were similar problems with the Samsung Gakaxy Tab 3, the phone tablet fell a lot and, in fact, the entire body looked like it had been bombed. Over time, the sensor began to fail, namely, when the processor overheated, the screen stopped responding; it worked, but did not respond to touches. I disassembled it at home, completely checked the processor myself and didn’t understand anything, but after reassembly everything worked fine. Yesterday, after an “accidental” hit on the screen, this problem arose again. I tried to solve it by blowing out the cable, blew it out, connected it, worked for several hours, and closed it in the morning. No matter how much I blew into it or picked at this cable, it didn’t matter to him, I had to peel off the screen and get to the screen chip. As it turned out, the blow was straight to this very chip. Another cable was connected there, I removed the film, took out the cable, inserted it back - it didn’t work. Well, I think that’s it, I’ll have to fork out more money, but I remembered that there was a video on YouTube where a guy doused the screen with electricity from a lighter so that some areas would return to working condition, I decided to try: I punched the main loop, it didn’t work, I punched the chip loop, it didn’t work, I shocked the chip, the sense came back. I’ll say right away: this may be a simple luck, and in your case it will not help, especially for those who have a non-removable panel, but often breaking through some elements saves the life of the equipment. Don’t repeat this on new phones, and especially on those that have a warranty, but for those who like to experiment and who don’t really need their device, go for it, maybe it can! All the best and cookies, maybe it helped someone.

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I didn’t find the video, but the advice with the current helped) thank you.

Hi all. I have a Samsung A3. After rebooting the phone it starts working. What reasons should there be and how to fix it. Thanks in advance.

Proximity sensor sometimes does not work.

My phone works, when they call me, music plays but I can’t receive the call. I can turn up the volume but I only hear vibration. The screen doesn’t work, it just turned off (the screen).

I am also Chinese. As soon as Wi-Fi is turned on, the screen turns off, but then after 3-5 minutes it turns on. What nonsense, the phone is 1 month old.

Hello, my sensor doesn’t work, I don’t know why. I was just sitting in the browser and wanted to go to the main menu, froze, rebooted, and in the place where the control panel (at the bottom of the screen) doesn’t work anymore, I rebooted 10 times and I don’t want to reset the factory settings ( too much music, photos, applications, etc.) what to do now. (Supra) flattener)

After replacing the touchscreen, it sometimes freezes and you can’t unlock the screen or hang up until you press the power button a couple of times, then it will work, but it works fine without glitches. What could be the problem?

Hello! The Meizu M3 laptop phone worked fine for a year, today I went into WhatsApp and it started to glitch, the second and third pages of the desktop do not open, only the first. It immediately became hot at the top, it does not respond to the “reboot” command. I turned off, turned on and the ENTIRE desktop disappeared! Doesn’t react to anything at all. I didn’t drop the phone or bathe it in water. What could this be? What should I do now? I’m crying, help!

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Android slows down: causes and solutions to the problem

Every owner of a smartphone or tablet immediately after purchase is very happy with the speed at which his device works. All operations are performed quickly, touch responses are timely and without glitches with pictures. But over time, everything changes and performance deteriorates. Why is Android slow?

Main reasons

Among the reasons why Android slows down or freezes, there are several main ones:

work slowdown can be caused by a large number of simultaneously running applications, albeit in the background;
due to a recent update, a smartphone that previously did not slow down may begin to do so;
any device can freeze even when it starts to run out of free space;
a small amount of RAM can even cause the gadget to spontaneously reboot;
Sometimes the phone may glitch due to problems with the touchscreen.

What should you do if your phone starts to slow down for one of the reasons listed above?

Troubleshooting methods

Cleaning apps

When the phone starts to slow down a lot due to power-hungry applications and background processes, then to correct the situation you need to:

hold down the menu button, a list of recent ones will open running applications, select “Delete all”;
in the Application Manager, view the list of running ones (opposite each one the operating time and the amount of RAM it occupies are indicated) and forcefully stop each one that is not needed at the moment;
Additionally, you can remove live wallpapers and widgets, which also greatly affect the productivity of the device;
It is better to remove applications that the owner of the gadget does not use altogether in order to avoid running their processes in the background in advance.

Rolling back an update

Why does my device slow down after the update? The fact is that over time, any smartphone or tablet becomes outdated, and each new version Software or Android with its additions requires increasingly powerful hardware.

Via Recovery. First you need to download the required firmware version to your phone and save it on your memory card. Then enter Recovery (usually using a combination of the power button and the volume rocker down). Next, install the downloaded update and reboot the phone.
Through a computer. To do this you need to download installation file from the manufacturer’s official website and using the software supplied with the phone (usually on a disk) install it on a gadget connected to a PC.

After this, it is advisable to disable the function on your phone automatic update system so that the procedure does not have to be repeated. You should also remember that after flashing the phone, all data may be lost, so it is better to make a backup first.

Free up internal memory and storage space

When the device runs out RAM, it tries to make up for it at the expense of internal memory. If its volume is too small, the phone may refuse to perform any actions. In this regard, you need to periodically perform the following actions:

clear system and application cache;
by resorting to special applications, clean the system itself (this will terminate background processes);
synchronize media files on the cloud or with another drive and clean them from your device;
do not forget to carry out the same actions with a flash drive, because... A small amount of free memory on it also affects the performance of the device.

Sometimes when you run out of RAM, it’s enough to simply reboot your phone.

Screen calibration

This need arises more often after mechanical damage or contact with water. And to be sure that it is the sensor on Android that is problematic, you need to:

remove the film;
Try to enter any character on the keyboard.

If a different number or letter pops up, the touchscreen will have to be calibrated. You can configure the sensor sensor using special programs(for example Touchscreen Repair), or manually. In the Play Store you can find a large number necessary applications, and free of charge.

Self-calibration is carried out as follows:

In the phone settings, go to the “Display” tab;
find the item whose name will say “calibration”;
put the phone on a flat surface and press calibrate (in some models the phone will offer a target, the center of which must be hit at least 3 times);
reboot the gadget and check the response again.

On the LG L90 smartphone, the calibration item was found in the “General” tab, “Gestures” item.

Video “Calibrating the Android touchscreen”

You can clearly see both methods of screen calibration in this video.

Smartphone users are often interested in what to do if their smartphone’s sensor is faulty. This happens because the user interacts with the device through the touch screen, be it scrolling through menus, working with files and other functions of the device. If the sensor malfunctions even after repair, the user cannot fully use all the functionality of the gadget. And this is sometimes extremely necessary.

Why is this happening?

The sensor on Android or iOS can start to fail completely unexpectedly. The reason may be poor quality repairs or components, or a fall. Typically, inadequate sensor performance on almost any smartphone is associated with mechanical impact. To protect the touchscreen from impacts, install safety glass or film, since without additional protection, unpleasant situations may arise due to an impact or fall. As a result, the sensor on the phone malfunctions, or it completely fails.

The touchscreen may start to fail for several reasons:

Moisture entering the device body.
Software errors.
Incorrect replacement of the touchscreen or poor quality of components.

If you know for sure that your phone has not been subjected to mechanical stress or moisture, but the touchscreen does not respond to touches or reacts incorrectly to them, then most likely the problem is a software error. It is possible to fix this yourself.

Signs of a faulty sensor

There are several indicators of a faulty touchscreen on a smartphone:

The sensor does not respond to touches in certain places or on the entire screen.
Chaotic display responses (files and applications open on their own, scroll through menus, etc.) after a shock, fall, or poor-quality repair.

If the sensor is faulty, what to do and how to solve the problem yourself? Let's look at the methods further.

Clear screen

When starting to independently revive a poorly functioning, slow or glitchy sensor, you need to clean it of contaminants. This will definitely not make the smartphone any worse, but the contact between the finger and the touchscreen will improve, which may well solve the problem of freezing and stuttering. To clean your smartphone display, it is better to use a soft, lint-free cloth and a special sensor cleaner. Special ones are also suitable wet wipes for screens.

Reboot your phone

As stated above, the problem may be software. In this case, rebooting the device may help. If it's buggy iPhone sensor, necessary:

Press and hold the power and home buttons (power and volume down buttons on iPhone 7 and above).
Wait on the phone screen Apple logo.
Check the functionality of the sensor by touching the icon of any application after loading the system.

If the sensor is buggy on a smartphone under Android control, reboot instructions will vary as key combinations vary depending on the device manufacturer. For example, for most Samsung smartphones A combination of the power key and volume down key is suitable. Rebooting the device can solve the problem of the sensor not working properly due to a software error.

Check protective accessories

It happens that it is the additional protection that interferes with the operation of the sensor. Because of this, the sensor may not respond immediately or may slow down when you press one of the sides of the case or mechanical buttons on the device. For example, the sensor may completely stop responding to touches across the entire display or only in the lower part, if protective film or the glass was glued to the phone screen incorrectly.

The market today is replete with affordable security measures for smartphones, but not all of them have high quality and do their job properly. If your case covers any part of the screen, it will interfere with the normal functioning of the device, causing the touchscreen to malfunction or freeze. What to do if your iPhone sensor is faulty? In order to identify what causes the touchscreen to respond incorrectly, you need to remove the case and check the sensor. If interruptions in the operation of the display are caused by the protective cover, then after removing it, the functionality of the sensor will be restored. But if the screen continues to fail, you should look further for the problem.

What to do if the problem cannot be resolved?

If rebooting the device, re-gluing the glass and removing the protective case did not produce any results and the touchscreen is still buggy, most likely the issue is not software errors and incorrect accessories, but a malfunction of the internal components of the device. In this case, you should contact the service professionals who will carry out diagnostics, identify the breakdown and replace the failed part.

If, after the device is dropped, the keys periodically work incorrectly or do not work at all and the touchscreen does not respond to presses, then the technician will first find out the cause of the breakdown and then eliminate it. After the diagnosis, they will explain to you in detail why the touchscreen was buggy or not working, and will tell you about the condition of your device after it was dropped or exposed to moisture. Next, if necessary, the specialist will clean the device from traces of moisture or replace the display module.

When might a screen replacement be needed?

The display of any phone is constantly exposed to mechanical stress, as a result of which it may stop responding to touches, or the sensitivity of the sensor may decrease.

Deep scratches on the glass can also cause the bottom of the screen to stop working. To solve problems with a touch display that is completely or partially not working, it is necessary to replace the glass or the entire display module. Also replacing the display when malfunction sensor or incorrect display of information on the screen is necessary after:

Phone falling.
Moisture gets into the housing, which negatively affects the sensitivity of the sensor and causes incorrect responses.
Scuffs and deep scratches on the glass due to normal wear and tear.
Other mechanical damage to the touchscreen.

Replacing the display module if damaged or not working correctly is quite simple. But if you disassemble and install a new screen yourself, you can damage thin cables and mounting sockets, which will lead to more expensive repairs.

Every owner of a smartphone or tablet immediately after purchase is very happy with the speed at which his device works. All operations are performed quickly, touch responses are timely and without glitches with pictures. But over time, everything changes and performance deteriorates. Why is Android slow?

Among the reasons why Android slows down or freezes, there are several main ones:

work slowdown can be caused by a large number of simultaneously running applications, albeit in the background;
due to a recent update, a smartphone that previously did not slow down may begin to do so;
any device can freeze even when it starts to run out of free space;
a small amount of RAM can even cause the gadget to spontaneously reboot;
Sometimes the phone may glitch due to problems with the touchscreen.

What should you do if your phone starts to slow down for one of the reasons listed above?