A modern smartphone is a complex device that not only has enormous computing capabilities and high-speed Internet access, but also many different sensors: an accelerometer, light sensors, a gyroscope, and some devices even have a barometer for measuring pressure. If our smartphones didn't have all these sensors, then augmented reality games, sports trackers, sleep monitors and hundreds of other types of applications that use various sensors on the device would never have been born.

Like any other component of a smartphone, sensors and sensors tend to fail or not work correctly. If we are talking about conditional GPS, then it is easy to check by checking the real geoposition with what is shown by the device; it is much more difficult to assess how accurately, for example, an accelerometer works. There is no tool in iOS that allows you to adjust the operation of the sensors, apart from the standard compass balancing, when the iPhone itself offers to describe a figure eight in the air. Android allows you to assess the status of sensors in more detail and make changes to their operation.

Most Android devices have a service menu that can be accessed by typing *#*#4636#*#* in the Phone app. For some manufacturers, this combination may differ, for example, on Sony Xperia smartphones it is * # * # 7378423 # * # *.

The screenshot above shows the service menu on the Sony Xperia Z2 smartphone. It may differ in its capabilities from different manufacturers. Sony smartphones have a point for testing sensors, but ASUS no longer has it.

Be careful when working with the service menu. It is intended for technical support specialists who know what they do. Conduct sensor diagnostics and follow the system prompts, but do not change any settings in the service menu unless absolutely necessary. This may affect the performance of the device.

LG and Sony smartphones have a basic tool for calibrating the sensors. It is located in “Settings” > “About phone” > “Diagnostics”. It repeats the capabilities of the system menu, but in a simpler and more visual form. Also, do not forget about third-party software. The application is extremely useful for analyzing the operation of sensors

It does not allow you to make any adjustments, but shows all the information for each sensor, building visual graphs and displaying data in real time, which will help you quickly identify incorrect behavior of the sensor or sensor.

Programs can make changes to the operation of device components only if the user has root access. Advanced users can install third-party firmware on their device that supports Xposed modules and other similar applications that will allow access to sensor settings.

Problems with sensors and sensors can be different. If your light sensor is malfunctioning, you can probably easily overcome this by turning off automatic brightness adjustment, but incorrect behavior of the accelerometer or gyroscope will make comfortable use of the device impossible. To summarize, if you are faced with a sensor malfunction, carry out initial diagnostics using Sensors Multitool, then try the calibration procedure from the system or service menu. If none of this works, contact the manufacturer's service center. Problems cannot be solved with software tricks if the sensor itself is faulty, and this happens often.

Every year, manufacturers release dozens of new smartphone models. Some can boast of their low cost as a distinctive feature, others have high performance, others have an ergonomic design, and others are endowed with excellent energy-saving characteristics, a powerful battery and shock resistance. But none of these devices can be 100% protected from breakdowns of various types. One of these troubles is the spontaneous activation of the touchscreen, which is usually typical for Chinese budget smartphone models. Why the sensor on the phone is pressed by itself and how to deal with this problem, you will learn from the article.

Incorrect operation of the touchscreen is not the most pleasant thing, but the problem can be fixed

Conventionally, the reasons why the sensor itself is pressed can be divided into two categories:

• Software failure - occurs due to errors in the software (software) of the smartphone;
• Hardware failure - errors associated with damage to the component parts of the device.

Depending on the model of your smartphone and the circumstances under which the screen malfunctioned, you can be more or less likely to say which of the above failures caused this problem. Thus, in Chinese budget models (according to statistics, most often in Alcatel and Xiaomi), the incorrect functioning of the touchscreen occurs as a result of low-quality assembly of the device and a cheap resistive display, which, as is known, is vulnerable to the accumulation of static charge on its surface. Dropping a smartphone or pressing hard on its screen can also cause problems with the operation of the touchscreen.

However, there is no need to despair. Before claiming that screen functioning errors arose due to hardware damage, you should try to fix this problem using software methods. Let's take a closer look at them.

How to eliminate spontaneous sensor activation programmatically

So, let's look at several ways to solve this problem on our own.

Method 1: Reset your smartphone to factory settings

Depending on the smartphone model, restoring the “default” operating parameters is performed in a certain section of the settings. However, the path to them is the same for most devices; only the names of these blocks differ. Therefore, let’s look at how to reset the settings to factory defaults, using the Philips S326 smartphone as an example.

Method 2: Screen Calibration

Re-calibration of the touchscreen may be necessary not only in the event of a software failure, after which the sensor on the smartphone clicks on its own. After a mobile device falls from a height, falls into water, replaces the display, etc., calibration must be carried out - this can help in most of the cases listed here. Let's consider two methods that allow us to carry out this procedure.

Screen calibration using standard tools built into the smartphone

In those device models that have the ability to determine the tilt angle of the touchscreen as standard functionality, you can calibrate it without using special utilities. For this:

1. Go to the “Settings” section of our device;
2. In the “Display”, “Screen” or “Special Features” block, find the “Calibration” item and click on it;
3. The next window suggests, as a rule, to place the phone on a flat surface and start the calibration procedure, then your device will automatically adjust the optimal touch angle and complete it.

Using the special application “Touchgreen Calibration”

This method is suitable for those whose smartphone models do not have built-in tools for screen calibration. The application compares favorably with similar ones, first of all, due to its ease of use, as well as the very high accuracy of determining the angle of the sensor.

1. So, to calibrate the screen using Touchscreen Calibration, you need:
2. Download the application from the link on Google Play - https://play.google.com/store/apps/details?id=redpi.apps.touchscreencalibration;
3. After installation, we launch the program, in the start window we see the inscription “Calibrate” framed in a blue background, you need to click on it;

Click on “Calibrate” to begin the touchscreen calibration process

The calibration procedure begins, during which you will be asked to adjust the screen tilt angle in six different touch modes, we go through each of them;

Do not forget that the smartphone must be on a flat surface all this time for the calibration to be as accurate as possible.

When finished, you will be prompted to reboot your device for the changes to take effect.

Here click “Ok” and reboot the device for the changes to take effect

Conclusion

If the methods described above did not help you fix sensor clicks, then the problem most likely lies in the hardware of your smartphone. There are several hardware reasons due to which the touchscreen may operate spontaneously:

• Resistive display - this type of screen differs from capacitive ones in that it is a layer of glass on which a flexible membrane is applied; as a result, such a touchscreen wears out quickly;
• Poor quality of double-sided tape - Chinese manufacturers, and some service centers that repair displays by replacing it, like to save money on double-sided tape, which is used to fix the screen inside the case. As a result, the touchscreen does not work properly.

For the above reasons, it is better to entrust the matter to a specialist than to try to repair the screen yourself. If you still want to do it yourself, I recommend viewing these guides on touchscreen repair:

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.

Finding out what to do when the touch screen stops working

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 under it), replace the protective film (contact a specialist to install it correctly on your 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, turn off the phone completely (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. Didn't fall, didn't get caught in 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 touches. (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 fine, 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.

phone 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 Android phone or 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.

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

Fixing a software glitch:

Free legal advice:

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

It is based on solving problems with communication and network reception of Android phones and tablets 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 corrects all possible settings and synchronization errors is a small, easy-to-use, free utility for devices based on Android Multi Cleaner. You can download the application from Google Play and see its additional options in the description 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 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 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!

Free legal advice:

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 a 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, then it randomly opened everything, pressed everything on its own. I 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 Xperia Z5 phone. 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!

Free legal advice:

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.

Free legal advice:

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 to have 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. This is something that is extremely undesirable to do at home and you cannot do without a service center.

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

You need to monitor your touchscreen phone and handle it more carefully than a push-button phone.

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, at the moment it doesn’t respond, I press one point and it completely opposite...What to 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 .

My Alcatel Onetouch phone does not respond to touches. 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, it is a smartphone on the Android platform, and there are also 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 sensor does not work only in the screen area and the back touch buttons 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 whole body looked like it was after a bombing. 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 the cash, but I remembered that there was a video on YouTube where a guy sprayed electric current from a lighter on the screen 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 fucked up the chip electric shock, the sense is 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. Thank you 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 cannot 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:

• 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?

Solutions to the problem

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 recently launched applications will open, 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 of software or Android with its additions requires more and more powerful hardware.

1. 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.
2. Through a computer. To do this, you need to download the 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 automatic system update function on your phone so that you do not have to repeat the procedure. 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 a device runs out of RAM, it tries to replenish it using 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

What to do if the sensor on your phone is faulty? In this case, you need to configure the problematic display to correctly execute commands after shaking your fingers or stylus. Otherwise known as 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 Market you can find a large number of necessary applications, and they are free.

Self-calibration is carried out as follows:

• In your 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.

Good afternoon, dear reader!

Today I will tell you a story from my life. This is not just a story, this is practical advice. It’s not for nothing that this article is located in the “Everyday Affairs” section.

I have several phones. Yesterday, on one of them, the touchscreen (or touch screen) “died” - a touch screen that completely replaces the physical keyboard.

As usual, he “died” partially, but this was quite enough to completely paralyze all work.

light spot

The sensitivity on the narrow strip on the right has disappeared. The phone was turned off at night, and in the morning I tried to turn it on. This procedure is accompanied by entering a password. And I need this narrow stripe on the right, since I will use the number located there.

As a result, I couldn’t even turn on the phone. As usual, calls began to service centers and answers: “Leave your phone number - we will call you back once we check whether we have such a touchscreen or not.” As a rule, everyone promised to call “today or tomorrow.” What should I do right now?

In general, there was only one bright spot in this whole story - the Internet. Why light? Because you will always find answers to 99% of your questions on the Internet! I found the answer too.

Which? I'll tell you now.

Where can I get it?

If the touchscreen on your phone is “covered with a copper basin,” you will need a piezoelectric element to “resurrect” it. Where can I get it? Of course, in a piezo lighter. But I don’t have a piezo lighter at home: with a handle, on a wire or a battery - there’s no such thing.

But there is a piezoelectric element. It is installed on the hob of my gas stove. Turning the burner knob, I open the gas. At the same time, I press the handle down and turn on the piezoelectric element. This is how I light the burner.

In general, I need a piezoelectric element, but I don’t need gas. I turned off the gas valve. Turned off my phone. I brought it with the screen to the piezoelectric element: the place where my touchscreen “died”. I turned on the piezoelectric element and moved the screen for a few seconds so that the spark covered the “dead” area of ​​the touchscreen.

After that, I turned on the phone, and - lo and behold! – the touchskin is working! He really recovered! He became fully operational!

The effect lasts...

Various sources on the Internet report that the effect of such resuscitation lasts from several days to one month. Today is my second day since the touchscreen “came to its senses” - everything works perfectly.

Of course, it is necessary to replace the touchscreen, but resuscitation from a piezoelectric element as an immediate method is simply great!

If my solution helps you, I will be only glad! Have you ever experienced a sudden “death” of your touchscreen at the most inopportune time? How did you solve this problem?

Calibrating the Android screen, or rather the sensor, is a typical task; it can be done through the engineering menu. Actions that relate to the formulation - calibrating 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 such a setup, the device will work, but a number of undesirable consequences will arise when operating the gadget.

Some owners of devices running the Android operating system that are equipped with touch screens may sometimes encounter the unwanted problem of “disobedience” of the screen. In other words, when you touch a certain point on the touchscreen with a stylus or finger, the gadget perceives it as a completely different command.

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

Urgent and correct calibration of the touchscreen on Android may be required in almost all cases if the smartphone has been dropped from any height, and after the device accidentally falls into the aquatic environment, this procedure is mandatory.

Also, calibration of the sensor on Android will be required after repair work on replacing the screen, the appearance of a water stain under the glass of the screen, and after suffering other, at first glance, minor damage.

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

1. Remove the special film protecting the screen (to ensure maximum correct operation of the sensor);
2. Enter any letter or number;
3. If there is a discrepancy between the button pressed on the gadget screen and the information typed, setting up the touchscreen is necessary.

Basic calibration methods

Two methods are used to bring a sensor-sensor that has been knocked out of its normal position into compliance.

These main 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 no different from each other and are identical.

Manufacturers of Android devices, as a rule, can use two types of sensor:

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

Touchscreen calibration using Android

If you do not have access to the Google Play assortment, the display of your Android device can be configured in another way without any problems.

Step-by-step instructions in this case might look like this:

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

After these steps, the device will automatically remember the touches. Thus, the calibration will be considered completed. After completing the setup procedure, you need to check the operation of the touchscreen by pressing a certain character on the screen, which should appear after its input.

Android screen calibration apps

You can configure the sensor using special software. The necessary software to successfully carry out this process can be found freely and freely available on the Internet.

The programs are quite simple to install and operate. But the most important thing is that you can get a positive and effective result from using almost any of them. In the Google Play store you can find free software applications 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 the phone and enjoy the accurate operation of the device’s touchpad.

Application
This program has an excellent interface and also has some additional special features. Advantages of the application:

• Bubble is a free program;
• Works great with tablets and smartphones;
• Advertising can be disabled in the settings, or it can be left to encourage developers;
• Excellent graphics;
• The presence in the application of a special display that displays the angle of inclination with the highest accuracy in fractions of a degree;
• Easy to use;
• Possibility to fix the angle with a gesture or click;
• The presence of a sound signal at the zero position of the angle;
• If necessary, the ability to lock the screen orientation (horizontal or vertical);
• Ability to reinstall the application on the SD card;
• Disabling, if necessary, the “sleep” mode while the program is running;
• Using full screen mode.

Using the program is completely easy. To do this, after the initial launch, you need to select the type of device screen orientation in the settings (or set the “Auto” mode) and perform level calibration.
To do this, place the phone horizontally and press the calibration button on the left of the screen for a short time. “Calidbration” should appear on the touchscreen, and then “Wait”. The application will be ready to function when the screen displays a zero degree value.

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

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

The program is a professional tool for fine-tuning the level on an iPhone or iPodTouch. The application is used to solve ordinary problems or in more complex areas of use where the tilt of the device needs to be measured quite accurately. 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;
• Advanced two-way calibration allowing adjustments on surfaces that are far from level. Any direction is calibrated separately in order to obtain the required accuracy;
• Possibility of free download;

Possible calibration problems

If, however, the device is not calibrated using the method chosen for this purpose, or the application used does not give the necessary positive changes, then experts recommend trying another program; fortunately, there are quite a lot of them, software in this direction is very diverse. You can also try “Hard reboot” or in other words rebooting the device.

The last option for calibration is to contact a service center. A similar problem with the device screen can be caused not only by incorrect settings, but also by more serious reasons. In particular, in hardware failure of device elements or the presence of manufacturing defects. In this case, it is more advisable to contact specialists to troubleshoot the problem.

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.

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