Every tablet owner may have a problem with the screen working or turning on. Of course, decide this problem you can do it easily by just taking it to a workshop. There, experienced specialists will be able to bring your gadget back to life for a fee. But there is another option; you can conduct diagnostics yourself and determine why the screen on the tablet does not work.
Before starting diagnostics, you need to determine the nature of the problem. It can be of two types: this is mechanical damage to the screen, which could occur as a result of certain actions or a software failure. As a rule, mechanical damage can be seen with the naked eye. In such cases, it is better to give your tablet to a specialist, because without experience and certain skills it will be difficult for you to fix it.
Another type of problem is a software glitch. It can occur for many reasons. For example, the tablet stopped turning on after charging it or installing any applications or games. Failures can also occur as a result of visiting dangerous sites. In this case, the problem can be solved independently without any outside help or additional expenses.
Before you begin restoring your tablet, make sure that it has not suffered any mechanical damage. Then you should disconnect the battery of your device and wait a few minutes. Next, you need to insert the battery back and try to restart the tablet. This procedure allows the gadget's operating system to completely reboot. Very often this is enough for your assistant to begin functioning normally again.
If this procedure turns out to be useless and the tablet screen still does not work, you should try to reset all settings to factory settings. Almost all tablets this function implemented by simultaneously pressing the keys to turn off and adjust the sound of the device. If you did everything correctly and the reason is a software failure, your tablet should vibrate, and a menu with settings will appear on its screen. In the menu, use the volume keys and the power button to select: Settings - System format - Reboot system. After this, your gadget will start again, but everything previously on it will be deleted installed games and applications. This way you will roll back all settings to the original level.
If the tablet does not respond to key presses, you should read the instructions for it. Each device must have its own emergency method of rebooting the system. Before resetting all settings, it is recommended to remove it from it. sim cards and memory cards.
If the method you found in the instructions does not work, you need to take the tablet to be reflashed. In this simple way, you will completely reinstall the entire operating system of your gadget. It’s better not to try to reflash the tablet yourself, this can lead to more disastrous consequences.
There are two main categories of circumstances why the screen on a tablet does not work - due to mechanical damage or due to a software failure. With the first category, everything is clear - if your device falls or someone damages it, the screen on it cracks, as a result of which it stops working correctly. The second category of circumstances is more difficult to diagnose, but at the same time it is even easier to cope with this kind of problem.
Thus, users quite often complain that the screen has stopped working and reacts in any way to touches after charging, installing new applications on the device, or visiting some websites. All these problems are caused specifically by software failures, which, unfortunately, happen on devices running operating system Droid quite often.
What to do if the tablet freezes!!!
If there is no mechanical damage on the display, but at the same time it does not turn on, you need to perform a number of common actions that can help “resurrect” your device. Step 1 - Disconnect the battery, wait 30 seconds and return it to its place. You can remove the battery from the tablet by simply opening back cover devices. This function needs to be implemented, as it allows the system itself to reboot and, on a theoretical level, can remove a software failure.
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Step 2 – reset the device options to industrial. You can do this even in this case, if the touchscreen of your tablet does not respond to touches. Here it should be warned that the following summary is typical for most tablets, but not for all, so you should first find out how to do a hard reset specifically for your device. Before resetting the options, you need to turn off the tablet and, just in case, remove the memory card and SIM card from it.
Next, press the volume up button and immediately press the power button. After these manipulations, the device should vibrate and a menu will appear on the display. In this menu, use the volume buttons to select “Options” and then “Format system/Reboot Droid”. After which your device will begin to reboot, and all options and programs that were installed on it will be deleted.
Step 3 – reflash your own tablet. If the first two manipulations did not help, and the screen does not work as before, and is not mechanically damaged, then flashing will help. Most users are afraid of this word, but essentially there is nothing terrible in it, since it only means reinstalling your operating system - the same as on a PC. If you have never flashed your own tablet, then it is better to ask someone more experienced to do it, so as not to completely “destroy” the device.
If the tablet screen does not work due to mechanical damage, which includes not only cracks, but also damage to the cables, then it should be replaced. It should be noted that replacing the screen on a tablet should be done as quickly as possible, even if it works. This is justified by the fact that if there are cracks, after some time not only the touchscreen, but also the matrix may fail, and replacing it will cost even more.
With all this, it is very better for the tablet screen to be repaired by specialists, since if you try to do it yourself, you can only worsen the situation. Thus, if there is mechanical damage on the screen of your device, most the best solution will contact service centers or companies that provide repair and maintenance services for mobile devices.
Components of electronic devices may break if used carelessly. If part of the touch screen on your phone does not work, this may be caused by both temperature conditions of use and mechanical damage.
Competent diagnostics will help you repair a smartphone or tablet screen that does not respond to touch. Sometimes simple cleaning combined with disassembling the case helps. However, if after all the user’s actions the device does not turn on, it will have to be taken to the service, and this may lead to additional costs.
Causes of failure
There are the following reasons why part of the screen does not work:
- Oxidation of contacts due to condensation. Moisture trapped inside the device can lead to complete or partial loss of functionality. Oxidized contacts stop responding to processor commands and transmitting them to the screen. To eliminate the consequences of liquid ingress, it is necessary to disassemble the device and clean the internal components. To do this, you can use alcohol applied to a cotton swab or swab. After this procedure, the phone should turn on in normal mode.
- Cracks on the surface of the screen. Due to microdamage to the sensor, it stops responding to touches. Such damage occurs due to falls or impacts on the screen. You can identify cracks in the display by carefully examining its surface. If part of the touchscreen is covered with cracks, then it is possible to restore functionality by replacing it touch screen devices.
- Disconnection of touchscreen contacts as a result of displacement. This usually results in the bottom or top half of the screen not working. To diagnose contact displacement, you need to disassemble the device and see if the visual order of the symmetry of the components is broken. If you see misalignment of the contacts, you can try to correct them using tweezers. In addition, some elements are fixed with glue, which can melt at high temperatures and displace the contact. In order for the upper part to return to its place, you need to heat the mount with a hairdryer and return the component to its original position.
Features of the operation of electronic devices
In addition to the listed breakdowns, electronic devices may begin to malfunction due to the internal architecture. Limiting the size of components affects their power reduction if the tablet screen does not respond to touch - this may be a consequence of overloading the device with a large number of resource-intensive applications. For prevention, you need to start the task manager. Find out what is being loaded CPU devices, and disable unnecessary applications.
Electronic devices have increased sensitivity of screen sensors. A situation where the screen of a tablet or phone does not work may be due to simple contamination. The adhesion of grease and dust to the surface causes the tablet to not respond to touch.
If the screen on your tablet does not work, the best solution would be to take it to a service center for diagnostics. Most models have a very long warranty, which will allow you to replace the device with another device without defects or get your money back at no additional cost. If the case is not under warranty, perhaps you should just buy a new gadget and subsequently treat it more carefully.
Video review of the causes of screen breakdowns
When our devices malfunction, we try to solve the problem as quickly as possible. Before going to the service center, you should check your tablet yourself. Sometimes the cause of defects in operation is software glitches, this also applies to the screen. IN small review We will touch on three common problems faced by tablet owners:
- Darker screen during operation.
- The display begins to flicker.
- The screen goes blank during operation.
IMPORTANT! We remind you that you can try to solve software failures yourself; only professionals from service centers should deal with hardware problems.
The screen goes dark during operation
Failures in the operating system may be the cause. At normal functioning The screen begins to darken when inactive - this allows you to save battery power. If the display gets darker while playing a game, watching a video or browsing the Internet, then it’s time to restart the device. It’s better not to take on the task of updating the gadget’s firmware yourself.
In the case when the screen gets darker and then gets brighter again, it’s worth checking the matrix. It may be malfunctioning; replacing the part will help here, since the matrix cannot be repaired.
Display flickering
Here, too, there can be two options - a software failure or hardware failure. First of all, go to the settings of the application that is responsible for power. If all indicators there are set to a minimum, then the screen will not be able to work normally during games or videos.
The cause may also be an OS failure; in this case, it is recommended to restore the original firmware of the device. As for mechanical damage, flickering usually appears due to the cable - it can come off or become damaged.
The screen goes blank during operation
If this problem occurs when working with certain programs, then you should remove them and check the result. Also, some users solved this problem by doing a full reset (all data on the device is deleted). If the screen goes out when in contact with the tablet, and lights up again when you press the case, then this is mechanical damage. Most likely, the problem can be solved by securing the cable.
The tablet screen may not work for a number of reasons. Let's look at different situations to understand how to act in this case:
There is no picture on the screen, it is dark and does not work. Various circumstances can contribute to the appearance of such a defect. For example, if the device does not charge or the power circuit fails, and the user does not know about it, he may decide that the problem is in the screen. Try to find the "Reset" button and reset the settings to factory settings. Of course, the issue could be in the display itself, but in this case, most likely, we are talking about a hardware failure. If the backlight is on when you turn on the device, but nothing else happens, then the problem lies in the screen. Take the tablet to a service center for diagnostics. It may need to be replaced.
The image on the display is distorted or shows cracks or chips. Bumps and falls are the main enemies mobile technology, so if your tablet’s screen doesn’t work, think maybe the device has been dropped or has gotten wet. If such a problem really happened, then most likely the screen will have to be replaced with a new one. But you need to carry out diagnostics first, since only the protective glass may be damaged. The cost of replacement in this case will be much less.
There is an image, but it is impossible to unlock the tablet or the screen does not respond to commands. Carefully inspect the device: if scratches, cracks, darkening or other defects are visible, then the resistive layer may be damaged or delaminated. In this case, most likely, replacing the touch glass or replacing the touch glass controller will help. In addition, such manifestations often indicate software failures, virus penetration, etc. If there is a picture, but the tablet screen does not work, try resetting the settings. Reflashing the device can also help, but it is not recommended to do it yourself.
If you are not an electronics specialist and do not have relevant experience, then it is better to entrust tablet repair to professionals. Even if the tablet screen does not work due to a software glitch or a simple replacement of the protective glass is required, only a specialist will return the equipment to working order in the shortest possible time.
There are two main categories of reasons why the screen on a tablet does not work - due to mechanical damage or due to a software glitch. With the first category, everything is clear - if your device is dropped or someone damages it, the screen on it cracks, as a result of which it stops working correctly. The second category of reasons is more difficult to diagnose, but it is much easier to deal with this kind of problem.
Thus, users quite often complain that the screen has stopped working and does not respond to touch in any way after charging, installing new applications on the device, or visiting any websites. All these problems are caused precisely by software failures, which, unfortunately, happen on devices running the Android operating system quite often.
What to do if the tablet screen does not turn on
If there is no mechanical damage on the screen, but it does not turn on, you need to perform a series of simple actions, which can help “revive” your device. Step one is to unplug the battery, wait 30 seconds and put it back in place. You can remove the battery from the tablet by simply opening the back cover of the device. This procedure is necessary because it allows the system itself to reboot and theoretically can eliminate a software failure.
Step two - reset your device to factory settings. You can do this even if the touchscreen of your tablet does not respond to touch. Here you should be warned that the instructions below are typical for most tablets, but not for all, so you should first find out how to hard reset your device. Before resetting the settings, you must turn off the tablet and, just in case, remove the memory card and SIM card from it.
Next, press the volume up key and the power button at the same time. After these manipulations, the device should vibrate and a menu will appear on the screen. In this menu, use the volume keys to select “Settings” and then “Format system/Restart Android”. After this, your device will begin to reboot, and all settings and programs that were installed on it will be deleted.
Step three - reflash your tablet. If the first two manipulations did not help, and the screen still does not work, but is not mechanically damaged, then flashing the firmware will help. Most users are scared by this word, but in fact there is nothing scary about it, since it only means reinstalling your operating system - just like on a PC. If you have never flashed your tablet, then it is better to ask someone more experienced to do it, so as not to completely “kill” the device.
Tablet screen replacement and repair
If the tablet screen does not work due to mechanical damage, which includes not only cracks, but also damage to the cables, then it should be replaced. It is worth noting that replacing the screen on a tablet should be done as quickly as possible, even if it works. This is due to the fact that if there are cracks, after some time not only the touchscreen, but also the matrix may fail, and replacing it will cost much more.
At the same time, it is highly advisable that the tablet screen repair be carried out by specialists, since if you try to do it yourself, you can only aggravate the situation. Thus, if there is mechanical damage on the display of your device, the best solution would be to contact service centers or companies that provide repair and maintenance services for mobile devices.
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There are many little things that we don’t even pay attention to that affect our comfort in life. And a change in usual conditions can sometimes become not only a big surprise, but also a problem. For example, the backlight of the phone. While the device operates in the usual way, it is unlikely that a person will think about how its disappearance could affect the operation of the device and personal comfort. However, at one moment it may disappear, bringing unusual discomfort.
So, what to do if the phone’s backlight goes out? If standard user manipulations with turning it on and off, removing the battery and restarting the device do not bring the desired result, you should not panic. Most phone owners needlessly get scared and think that it’s time to replace the display, without thinking about the feasibility of this procedure.
Display backlight key failure
The reason for the disappearance of the backlight does not necessarily have to be serious, due to moisture or flying onto the floor from a height. One of the most common causes of problems with the backlight is a breakdown of the display backlight key (the transistor in the display backlight power circuit that ensures its operation) and in order for everything to return to normal, it is necessary to replace this spare part.
After this it will be necessary to perform a complete replacement software mobile device. It is impossible to bypass this procedure, because after replacement there will be a need to configure the parameters of the power controller that supplies voltage to the transistor. Therefore, you should take care in advance about saving important data stored on your phone - otherwise, it will be lost forever. Considering this fact, before contacting the service center, be sure to do backup copy the necessary data.
Driver assembly failure
The second probable reason for the disappearance of the backlight is in the driver microassembly. Self-updating is strictly not recommended, because there is a high probability that an inexperienced user will simply kill the gadget, only aggravating the problem.
It should be remembered that any problem with the backlight (it turns on spontaneously, goes out too quickly) may indicate that it may soon go out. If you notice something strange in the behavior of your unit, do not delay and immediately contact the service center. In some cases, it will even help you save money.
The third reason why the backlight may disappear is very trivial and common. These are trivial problems with the latch of the display connector. Sometimes it’s enough just to tighten the latch of the display connector well and the mobile device will work as it should again. Sometimes it is necessary to replace a loose connector or thicken the display cable to ensure normal contact.
And, of course, we cannot help but say once again that the backlight, of course, can disappear due to a fall or the formation of condensation due to moisture. In fact, problems associated with the disappearance of the backlight after such incidents (if the display is not broken, of course) can be classified as follows:
- There is no backlight, but there is an image - most likely, the problem is in the backlight driver or in the coils.
- There is no backlight or image - there may be a problem with the processor.
Remember that only a qualified technician can accurately diagnose problems. Independent attempts to make a “diagnosis” mobile device or try to estimate the scope of renovation repairs will most likely not lead you to a constructive result.
