The touchscreen does not work correctly on the android what to do. Slows down Android: causes and solutions. If the sensor on the phone does not work for no apparent reason

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

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

• inhibition of work can cause a large number of simultaneously running applications, albeit in the background;
• due to a recent update, a smartphone that did not slow down before may start doing this;
• any device can freeze even when free space begins to run out on it;
• a small amount of RAM can even cause the gadget to restart spontaneously;
• sometimes the phone may glitch due to problems with the touchscreen.

What to do if the phone starts to slow down for one of the listed reasons?

How to fix the problem

Cleaning applications

When the phone began to slow down a lot due to gluttonous applications and background processes, then to fix 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 indicates the operating time and the amount of RAM it occupies) and forcibly stop each unnecessary at the moment
• in addition, you can remove live wallpapers and widgets, which also greatly affect the productivity of the device;
• applications that the owner of the gadget does not use, it is better to uninstall altogether in order to avoid running their processes in the background in advance.

Rollback update

Why does the device slow down after the update? The fact is that over time, any smartphone or tablet becomes obsolete, and each new version of software or Android with its own add-ons requires more and more powerful stuffing.

In this case, you will have to reflash your gadget with a return to the previous, workable version. This can be done in two ways:

1. Through Recovery. First, you need to download the required firmware version to your phone and save it on the memory card. Then enter Recovery (more often with a combination of the power buttons 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 the gadget connected to the PC.

After that, it is advisable to disable the automatic system update function in the phone so that you do not have to repeat the procedure. It should also be remembered that after flashing all data from the phone may be lost, therefore it is better to make a backup first.

Freeing 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;
• using special applications, clean the system itself (this will terminate background processes);
• sync media files on the cloud or with another storage device and clean up from your device;
• do not forget to carry out the same actions with a flash drive, tk. a small amount of free memory on it also affects the performance of the device.

Sometimes, when the RAM runs out, it is enough to just restart the phone.

Screen Calibration

What to do if the sensor on the phone is buggy? In this case, you need to configure the problem display to correctly execute commands after waving your fingers or stylus. This is also called screen calibration.
Such a need arises more often after mechanical damage or contact with water. And to be sure that the problematic sensor is on Android, you need:

• remove the film;
• try to enter any character on the keyboard.

If another 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 of necessary applications, and free ones.
Self-calibration is carried out as follows:

• go to the "Display" tab in the phone settings;
• find the item with the title "calibration";
• put the phone on a flat surface and press calibrate (in some models the phone will offer a target, in the center of which you need to hit at least 3 times);
• reload the gadget and check the response again.

Touch-sensitive devices have replaced push-button telephones. What has changed after this technology has firmly entered our lives? Almost everything that is in some way connected with the functioning of the device. That is why the situation in which the sensor stops working requires immediate resolution. Moreover, in many cases, a person has almost every chance to restore his device. We will talk about this in more detail later.

Why did the sensor stop working?

There are many reasons why the sensor on the phone does not work (what to do is described below). Given the manufacturability of the touchscreen, as a rule, most often this control is quite fragile and finicky. Its performance depends as much as possible on weather conditions, damage, as well as liquid ingress.

If a software failure or spontaneous failure of the system occurs, then problems with the operation of the sensor may appear. These disadvantages are, in principle, conditional, they can be easily avoided. We can seriously say that a person is the most important factor in the performance of a mobile device. It will depend on the actions of the owner how long the device will be in operation and why the sensor on the phone does not work.

Typical touchscreen faults

Often, breakdowns are formed due to mechanical damage. If the phone is dropped or deformed, the device will not function properly. Impacts or other mechanical influences can cause various consequences. Typically, they can be normal chips on the lid at best, or a cracked display at worst. If the deformation of the case does not affect in most cases the operation of the gadget, then the screen will need to be replaced. If the sensor stops working, then you need to pay attention to the components of the mobile device. If there is a body part slightly away from the display and you can see a gap, then you should immediately carry the phone for repair.

Sometimes a smartphone may stop working if liquid gets into it. It is completely incomprehensible to many how water manages to get to the board, but this is a common problem.

Self-rehabilitation

If the sensor on the phone does not work, it is not clear what to do, then you must first go to the device settings. There you need to calibrate the touchscreen. This feature can often be found in the main settings. These actions can be carried out if the screen is completely in order, the case is intact, there are no traces of deformation or oxidation. If the sensor has a flawlessly smooth surface, then it is likely that the touchscreen has simply turned off.

If the forecasts are not entirely optimistic, the sensor on the phone still does not work, what should I do? It is better to immediately start looking for a solution to your problem. In order to perform the following actions, you must have certain skills.

Elimination of oxide

In order to remove the oxide, it is necessary to use a special tool - this is a Phillips and flat screwdriver. An unnecessary plastic card will also work. You should take rubbing alcohol, a toothbrush, an eraser and tissues. Before disassembling your device, you need to watch the video, which describes how to do this. To do this, you just need to type your phone model in a search engine and look at reviews on it.

Care must be taken when separating body parts. There is a risk that a person can fly a train, cut wires or break any parts. In order not to get lost with the screws, you need to draw a diagram of the phone and lay out the screws according to the drawing. All accessible places where liquid can get into should be wiped with alcohol, then with an eraser and then blotted with a napkin.

In order to eliminate the corrosion of the board, you need to use a toothbrush. Often this is the reason that the phone sensor has failed. Where the cables are connected, especially when it comes to the touch screen connector, it is necessary to treat with alcohol and remove plaque with an eraser. As a result, the surface will be dry and clean.

If there is a flaking or displacement of the screen, then this is probably the problem. Often in such cases, the phone's sensor fails. In order to put the screen back in place, you must use a hair dryer. You can remove the touchscreen from the display by simply heating it. The adhesive will dry out and it will be easy to move the sensor to the desired location.

The device must be assembled carefully and carefully, installation must be in sequence. Do not forget about screwing in the screws. It is also necessary to put protective housings back on the microcircuits.

Other ways: how to fix the problem

There are many other reasons why a sensor can fail, so a person's actions will directly depend on the failure. Sometimes you can solve this problem yourself, remembering that repairing touchscreen phones is an expensive service. For example, if the sensor does not work due to surface contamination and does not respond to touch, then wipe the screen with liquid. You should also use a soft cloth. This is necessary if the question arises about what to do - the sensor on the phone does not work.

If the protective film was installed incorrectly and the lower part of the sensor on the phone now does not work, you need to replace this cover by cleaning the screen from dirt. Often dust and dirt gets under the film. This is what makes it difficult to work with the sensor.

In other cases, the cause may be a software failure. Solving this problem is easy by resetting the settings or flashing the device. In the most urgent cases, contact the service center. We'll talk about this below.

If the sensor on the phone does not work for no apparent reason

If the sensor stopped working for unknown reasons, then it is better to contact the service center and carry out a full diagnosis of the phone. This is the only way to find out the true cause of the breakdown and eliminate it without harm to yourself and additional money spent. If the phone is still under warranty, then you can easily replace the sensor or solve the problem itself. As a rule, experts answer the question of why the sensor on the phone does not work quite quickly. This method is the most effective. If a person does not want to harm his phone, it is best to immediately contact a service center as soon as a breakdown appears. You should not, if you are not confident in your abilities, try to solve this problem yourself.

Outcome

Summing up, it is imperative to say that the phone should be treated as carefully as possible. Replacing a sensor on a phone is a rather complicated process and also expensive. Therefore, it is best to provide your device with the most ideal working conditions. You don't need to leave it or treat it carelessly. It is imperative to periodically wipe the screen, change the protective film, only then can you really achieve excellent and long-term operation of the touch screen. If the gadget is under warranty, then replacing the sensor on the phone will be a free service.

Many owners of Android devices with a touchscreen often face a problem when the screen "does not listen" to them. That is, when you touch the touchscreen with your finger or stylus at one point, the phone perceives it as touching completely at another point. Or, the sensor completely fulfills orders with only 3-4 attempts. And most likely the reason for these problems is the incorrect operation of the screen, and in order to fix it, you need to calibrate the touchscreen of the Android device.

Calibrating the Android touchscreen: Video

What it is?

Screen calibration is setting up the touch display to correctly execute commands when you touch it with your fingers or stylus. Of course, you can work with your device without such a setting, but then get ready to waste your nerves, time and other troubles.

This procedure is required in most cases after the phone has been dropped, especially in water. Replacing the screen, the water stain under it, even the smallest damage may require urgent adjustment. Checking if you need calibration is as easy as shelling pears. First, remove the protective film to make the sensor work as clear as possible, then just enter any number or letter. If you have chosen, say "B", and "A" appears on the screen, then rest assured that you need to set up the touchscreen.

There are two main types of screens used in the production of Android devices: capacitive and resistive. Capacitive is now used in the absolute majority, since it is more reliable and of high quality. But with resistive, problems often arise, and it requires tuning more often. But the good thing is that now these are rarely used - only in outdated or budget models.

Calibrating the Android sensor: programs, setting: Video

How do I calibrate the screen on Android?

Setting using special programs

In the free, and most importantly - in the free, access, you can find a lot of software for screen calibration. They are easy to install, easy to operate and, what is important, they give results. For example Clinometer, TOPON, Bubble - just take a look at Google Play. But? even if you don't have access to Google Play, you can adjust the display without it using the second method.

Self-configuration

In order to independently adjust the touchscreen of Android 4 (or another version) without any problems, we present you with step-by-step instructions:

1. The first step, of course, is to go to the Settings menu.
2. Next, select "Phone Settings".
3. We find the item "Calibration" and you will see a cross-target with a dot inside.
4. We make money in the center of the target several times (3 will be enough).
5. After that, your device will remember the touches and the calibration can be considered complete.
6. After finishing the adjustment, check the operation of the sensor. If exactly the symbol that you clicked appears on the screen, then everything is done correctly. Congratulations! ()

Adjusting Touch Screen Sensitivity on Android: Video

Contacting the service center

Now you know two ways to self-calibrate the screen on your Android device. But there is also a third option for setting up your device - this is an official or private service center. It would seem, why turn to the master for such a trifle? But this problem is not always a trifle. It happens that the reason for the breakdown is not in the knocked down settings, but in a serious breakdown or in a factory marriage of the display. In this case, it is really better to contact the service if the first two did not work.

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 wording - calibration of the android screen include setting up the touch-type display in order to properly execute commands by the device by touching the sensor with a stylus or fingers. Without carrying out such a setting, the device will work, but at the same time there will be a number of undesirable consequences during the operation of the gadget.

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

Or there are situations when the sensor 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 for android may be required in almost all cases, if the smartphone has fallen from any height, and after accidentally hitting the device in the aquatic environment, this procedure is mandatory.

Also, the calibration of the sensor on the android will be required after repair work 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 actions:

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

Basic calibration methods

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

These basic methods include:

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

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

Android device manufacturers generally have two types of sensors:

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

Calibrating the touchscreen using android

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

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

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

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

Android screen calibration apps

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

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

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

application
This program has a great interface and some additional accessibility features. Application advantages:

• Bubble is freeware;
• Works great with tablets and smartphones;
• Advertising is disabled in the settings, or it can be left to encourage developers;
• Great graphics;
• The presence in the application of a special display that displays the tilt angle with the highest accuracy in fractions of a degree;
• Ease of use;
• Possibility to fix the angle by 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);
• The ability to reinstall the application to the SD card;
• Disabling, if necessary, the "sleep" mode during the operation of the program;
• Using full screen mode.

Using the program is not difficult at all. To do this, after the initial launch in the settings, select the type of device screen orientation (or set the "Auto" mode) and calibrate by level.
For this purpose, the phone is placed horizontally and the calibration button on the left of the screen is pressed for a short time. The touchscreen should show - "Calidbration", and then - "Wait". The application will be ready for operation when a zero degree value is viewed on the screen.

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

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

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

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

Xiaomi screen calibration: video instruction

Potential Calibration Issues

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

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

Checking and adjusting sensitivity parameters

The sensitivity of the sensor is adjusted according to the activity that is supposed to be on the gadget.

To do this, in the device applications, you need to select:

1. Parameters;
2. Special abilities;
3. Screen sensitivity;
4. Choose from the proposed options.

Important: You can test the screen setting without gloves or wearing them, depending on the planned use of the gadget.

Modern touchscreen mobile phones are a universally recognized attribute of our life. Their rich functionality and broad capabilities allow them to be used to solve a variety of tasks that are not limited to classic phone calls. The wealth of options for using such devices leads to their gradual failure, and one of the most common breakdowns is the dysfunction of the sensor on the phone, when the latter simply stops responding to pressing (or reacts extremely badly). In this article I will tell you what are the causes of such dysfunction, and what to do if the sensor on the phone does not work.

Reasons for a broken phone sensor

Consider the common causes of phone sensor failure. They can be as follows:

The sensor on the phone does not respond what to do

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

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

* # * # 3424 # * # * - for most HTC phones;

* # * # 7378423 # * # * - for most Sony Xperia phones;

* # 0 * # - for most Motorola phones.

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

We restore the operation of the sensor through safe mode

To boot into Safe Mode, turn off the phone completely (including by removing the battery). Then press and hold the Power button to turn on the gadget. When the logo of Samsung, Nexus, LG, etc. appears on the screen, release 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.

Conclusion

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