Why does the digma tablet not respond to touch? The tablet does not respond to touch, what should I do?

The weakest point in any tablet is the screen. Of course, from year to year manufacturers install more durable and improved glass, but even they sometimes fail. And today we will figure out what to do if the tablet does not respond to touch. Touch screens are subject not only to mechanical impacts, but also physical ones: falls, water, scratches and even cracks. Thus, if you drop your gadget or spill your morning coffee on it, you can say goodbye to correct recognition of keystrokes. On the other hand, the problem does not always lie in the physical impact: sometimes the display refuses to recognize fingers in certain applications.

What to do if the tablet does not respond to touches

By the way, in some tablets you can replace the sensor itself, while in others it comes along with the matrix to save space and improve picture quality due to the absence of an air gap. In the second case, you will have to pay for the replacement of both the sensor itself and the matrix.

Simple methods for restoring performance

1. Perhaps the film was glued incorrectly and now the presses are recognized every once in a while. It is necessary to peel off the film and wipe the display soft cloth without lint, so that there are no stains or streaks left, then stick the film on again. It is best to take a new one, but if the old one “sticks” well and has not lost its properties, you can return it to its place;
2. If the root of the problem lies in the software and just a couple of minutes ago the device was working correctly, but now it does not recognize clicks, you should restart the tablet. Of course, since there is no access to the screen, you will have to use one of two methods: remove the battery or hold down the “Power” button until the tablet turns off;
3. If you have a very old gadget or one imported from China, it may have a resistive type display installed. That is, it reacts not only to fingers, but also to pressing with any other object. Calibration can help here, but provided that touches are not recognized accurately. For example, when typing a message, you click on “Y”, but you always end up with “C”. Go to the settings and find the “Calibration” item there, tap on it and follow the system prompts;
4. Does your tablet stop responding to touches in certain applications? Try reinstalling them. If this does not help, then there is a possibility that the software on your device is outdated or the game/application developer simply forgot to add it to the list of supported gadgets. In the first case, an update will help, in the second you will have to wait for action from the developer;
5. Physical impact – liquids, condensation, shocks and falls. If because of them the tablet stops functioning, then you are guaranteed a way to the service center.

An important attribute of our comfort are our favorite things. For modern man Such a thing is a tablet, and it is very unpleasant when a breakdown occurs. What to do if the touch screen on your tablet does not work? Let's figure it out.

The touch screen is the main means of controlling your tablet

The thing is functional, but very sensitive. Its operation is based on the principle of sensitivity: at the corners of the screen there are special electrodes that apply a not too high permanent voltage to the sensor layer. This layer, in turn, is a conductor. When you touch with your finger, a “current leak” occurs, this is recorded by special sensors, then transmitted to the controller, which determines the touch points. The sensor works in this way: the closer you bring your fingers to the screen, the greater the current strength and the overall sensitivity of the display. If the surface of the screen is covered with some substance that, by definition, should not be there (for example, dirt or an air gap between the display and a carelessly glued film), this disrupts its operation.

Causes of failure

The main troubleshooting step is to identify the reason why the touch screen on your tablet is not working. There can be many of them, let’s highlight the main ones:

1. The first and most banal reason is mechanical: You spilled liquid on your tablet or dropped it. Many users cannot imagine their morning without a cup of coffee and reading news on the Internet. Liquid can spill from one careless movement, and, as a result, the touch screen on the tablet, or even the entire system, does not work. If you drop your “pet,” the sensor may break. In such a situation, it must be replaced;

1. The touch screen does not work because it is covered with a layer of plaque, scratches, the protective film is applied poorly. This picture happens with tablets that have been in use for a long time, and the warranty period has already expired.

The quality of the film adhesive may affect the operation of the touch screen

In the rhythm of modern life, even with care and attention, it is impossible to avoid small (and possibly large) scratches, dust, plaque formation and other mechanical influences. The longer we use a thing, the more it wears out. Often, to protect the display, we glue a film on it, but if this is done incorrectly, between touch screen and the film forms air bubbles and the sensitivity of the display is lost;

Simple solutions to complex problems

In any situation, you should provide first aid to your device. Based on the reasons given above, we can significantly improve, or even eliminate, the unpleasant situation.

Conclusion

If the touch screen on your tablet does not work, do not panic. You can easily fix most problems yourself, the main thing is to use verified information and avoid extremes (if your tablet is still under warranty, you should not reflash it yourself, as it will be removed from warranty). If you cannot cope on your own, it is better to entrust the task to specialists. The service center has devices for identifying problems and successfully eliminating them. After this, your tablet will be as good as new, it will delight you with excellent performance and will last for a very long time.

The most weak point Tablet computers are equipped with a touchscreen, as it is quite fragile and is subjected to mechanical stress on a daily basis. In this regard, one of the signs of a malfunction is that the tablet stops responding to touches. The reasons that can lead to such a problem can be very different, but the most important thing that the owner of a portable device needs to know is what is the best way to solve this problem.

Causes of screen problems

One of the reasons for the tablet display to fail to respond to touch is an incorrectly applied protective film, when bubbles remain between it and the touchscreen. This usually happens with new devices, and the element has recently been pasted on. However, there are times when the tablet computer worked properly for some time, and then stopped responding to touches.

The principle of operation of a capacitive touch screen is as follows: the electrodes, which are located in the corners of the tablet display, supply a small alternating voltage to the sensor conductor layer; during a touch, current leaks, which is detected by sensors, and the controller determines the touch points. The closer the finger is to the matrix, the higher the current strength, and therefore the sensitivity of the screen. If the tablet display is covered with a layer of dirt or a protective film that does not fit tightly, the operation will malfunction.

If the reason is not contamination or the shell that protects the touchscreen, there may be a malfunction software or loose contact between the memory card and the control panel. There are also older models Chinese tablets, equipped with a resistive touch screen that can move during operation. As a result, the screen responds to touches, but produces values ​​that are completely different from those entered by the user.

There are cases when the touchscreen does not function when entering an application, or the device is very slow, responding to touches with a significant delay. The reason for the slowdown may be the presence of viruses or not adapted for this version. operating system applications.

The most common reason for a tablet screen to fail to respond to touch is mechanical damage due to the device hitting a hard surface. In this case, anything can fail: the matrix, the cable, the elements of the system board.

Solutions depending on the problem

If the display is very dirty, you need to clean it using a special liquid for cleaning computer monitors. To do this, you need to take a soft, lint-free cloth and apply a little liquid to it, then wipe the touchscreen with careful movements until the dirt and oily stains that interfere with high-quality signal transmission are completely removed. If the tablet screen does not respond to touch due to incorrectly glued protective film, you should delete it and the device will resume operation.

If the display is clear, but there is no response to touches, try restarting the tablet computer, or turn off the device, remove the memory card and reinsert it after a few minutes. This method in some cases helps to restore contact between the memory card and system board. If the tablet screen has shifted, calibration can help. In the device menu you need to find the “Calibration” item, by calling it you can see crosses on the display, clicking on which allows you to align the sensor.

Such a drastic measure as flashing guarantees the removal of all viruses and the resumption of operation of the operating system. If the device has received mechanical damage and does not respond to touch, you must contact a service center, where, using diagnostics, the cause of the malfunction will be determined and the gadget will be repaired.

How much does it cost to repair a sensor?

The cost of repairing a tablet will consist of the price of the component that needs to be replaced and payment for the work of a specialist. One way or another, it will be much cheaper than buying a new gadget and more effective than trying to repair the device yourself.

In the first case, you will have to spend a round sum on purchasing a new one. tablet computer or, if the required amount is not yet available, be content with the lack of a device. In the second, you take a lot of risk. After all, without the proper qualifications and extensive experience, you can damage serviceable parts, which again will lead to the need to purchase a new tablet. Therefore, repairs at a service center are the best solution.

How long does a repair take?

Another big advantage of ordering a tablet repair in a specialized workshop is the speed of completion of the work. For example, in one of the most reliable service centers Odessa (conditions for tablet repair can be found) repair portable devices can be completed within 24 hours even with significant breakdowns.

Such organizations employ professional specialists, have special diagnostic equipment, and always have original components available. All this allows you to complete repairs in the shortest possible time.