Why won't my tablet turn on? The tablet does not turn on, what should I do in this case? Software failure

The technology we work with every day is mobile phone and the tablet is also not eternal. After months and years of intensive use, it breaks down, causing us difficulties and inconvenience. In particular, a situation can happen to each of us when the tablet does not turn on. In this case, there is no need to panic, we recommend reading this article and follow the instructions given therein. We hope that some of what we offer you will help and your computer will work normally.

Checking the charger

First you need to check if your tablet is charged. It may well be that no, and there is no way to replenish the battery due to a faulty adapter. To check this version, which may be the reason why the tablet does not turn on, just try to charge your gadget using a USB cable from personal computer. If the tablet shows that the battery has begun to replenish, this will indicate a malfunction charger. We recommend purchasing a new one in an online store or at a point of sale of accessories. Please note that you should only buy original charger for a tablet, since the use of counterfeit accessories threatens to damage your computer or its battery.

Pay attention to the On/Off button

Another possible reason why the tablet does not turn on may be a faulty device power button. In principle, it is difficult to understand this without mechanically disassembling the device. However, you can try to do this by pressing the button and paying attention to its progress. If you notice that the clicking sound of a part or its movement has changed, it is probably simply broken. Then there is nothing surprising in the fact that the tablet does not turn on. What to do in such a situation is up to you. Either you can disassemble your computer yourself and solder the button in the place where its contact was broken, or if you have little understanding of this and would not like to risk the working condition of your tablet, you can take it to service center and entrust the repair to specialists. There they either solder the connections necessary to transmit the signal from the button to the device itself, or replace the mechanism with a new one.

The absence of a picture is another possible reason

A situation may arise when, in general, the tablet functions normally, however, the display for some reason does not show the image. This problem is quite serious, since in order to solve it you will need to contact a repair center in any case. In order to diagnose a problem due to which the tablet does not turn on, it is enough to carry out all the manipulations necessary to turn it on and wait 15-20 minutes. During this operating time, the device should warm up slightly. You can feel this mainly in the area around the camera. The heating of the case indicates that the tablet is working, but you physically cannot see it, since there is no image transmission to the screen. This means that the problem is in the connecting cables or in the display itself. Most likely, some of this will need to be replaced. The problem with cables is actually solved quite quickly and simply, but if the problem is with the screen, then buying a new one can be quite expensive.

Tablet won't turn on due to battery

What other reasons are there? The answer to the question of why the tablet does not turn on may also be a version of a non-functioning battery. So, it may happen that the battery of your device does not hold a charge at all and needs urgent replacement. To get everything set up, we recommend connecting your tablet computer to network device after removing the battery. If the Samsung tablet does not turn on, then the problem will most likely be solved this way. Perhaps, in order to determine that it’s all about the battery, you should contact a service center or an accessories store and ask them to install the same battery for testing. By simply installing it and pressing the start button (if this is indeed the problem), you will see that your tablet will function properly again.

Errors at the software level

There are times when the tablet (Android) does not turn on due to errors in program level. They can occur with a boot mechanism called BootLoader. The latter is responsible for loading the system and its normal start after the tablet is turned off. Therefore, if the device does not function normally after startup, there is some problem at the BootLoader level. It’s not difficult to solve them - it’s enough to “reset” all the settings in such a way as to return the entire operating system Android system in the form in which it was still at the time of purchase.

If everything indicates that this is the reason why the tablet does not turn on, then you are required to reset all settings to factory settings. This is done simply - by pressing Home keys(or On/Off) and volume control buttons. After this combination it opens Android menu, in which you can choose to reset the version and return it to a “clean” state. The problem after reboot should be resolved.

Bottom line: don't panic

Each of us may experience a situation where the tablet does not turn on. We have listed what to do in such cases in this article. The main thing you definitely shouldn’t do is panic. You need to sensibly understand that any problem has its solution, including if the tablet does not turn on. What to do in this situation? Your task is to find this cause and eliminate it. As a last resort, if you really don’t want to do this, you can always take your gadget to a service center where they will help you. And then your device will again delight you with its work.

So, since you are here, your tablet won’t turn on, and you don’t have any friends who can solve this problem or they are very busy. Moreover, you clearly already tried to do something with him and we will cherish hopes that you did not aggravate the situation.
There are many reasons why the tablet does not work, but this does not mean that without special knowledge you cannot carry out minimal diagnostics. You really can. And at the same time, you will also save yourself a certain amount of money that you would have to pay to the service center. The main thing is to clearly and consistently carry out actions that will one by one reject various options.

Hardware or software?

First, we need to understand where the problem initially lies - in the hardware of the tablet or in the software. Because the seriousness of our actions depends on this, and in general the answer to the question of whether we can revive it ourselves.
Step 1. Look at the damage
Let's look at the tablet as an example mechanical damage. Try to remember if you could have dropped it or knocked it somewhere. Perhaps you gave it to someone to play with or just use. No matter how sure you are that the person handled him carefully, you still shouldn’t trust him. Many people are simply afraid to say.
After examining the tablet we:
a) Damage was discovered. Even the slightest chip can be a sign of a fall and, as a result, breakage. It happens that there are only a couple of scratches on the body, but something inside has broken off and fallen off. No one will advise you to open the tablet, look for schematics and repair the hardware yourself. If only because in 90% of cases this leads to even greater damage. Therefore, the tablet must be taken under warranty, or, if its period has expired, to a workshop.
Well, about the option broken screen It's even kind of stupid to say. The reason for the lack of performance is clearly visible.
b) No damage was found. Clean good tablet, but we remember every scratch and it was a long time ago. So let's move on to step 2.
Step 2. 101st attempt to turn on
We are trying to turn on the tablet. Yes, you already tried to turn it on and it didn’t turn on - that’s clear. But now we need to carefully look at what happens when we try to turn it on.

Probable development options:
Option 1. The tablet starts to boot, but does not turn on completely.
Option 2. The backlight turns on or other signs of life of our device appear.
Option 3. No signs of life.

Below we will analyze these two options. Let's start with the last one.

Option 2. Backlight only
In this option, there is still the possibility of a hardware failure, but it is possible that it is simply a software issue. Therefore, to begin with, we follow all the recommendations for option 1 and if nothing helps, we go to the service center.

Option 1. Loads, but not completely
In fact, the most common option. The time when it was difficult to create viruses for phones and tablets is long gone. Moreover, today the operating system on such devices is very complex and absolutely any harmless program can interfere with its operation. And of course, no one excludes the possibility that our Android glitched simply due to improper shutdown. In general, as you understand, there may be reasons great amount, and now the main thing for us is to bring our device back to life. Therefore, let's move on to the next step.

Step 3.5 Safe Mode
We can try to perform this step if our patient is more alive than dead and is simply very laggy, does not want to load the system and is generally hysterical different methods. Therefore, there is no particular need to highlight it as a separate step. Nevertheless, we try to enter safe mode and restore the operating system. On different Android versions it turns on in different ways, so read about that in another article.

Step 4. System restart
First, you will have to accept that all your data and settings will be deleted. More precisely, not all, but those that are stored in the main memory of the tablet. Because a system restart, or whatever it would be more correct to call it, can bring the device back to life. hard reset. So that you can roughly understand what happens in this case, you can give an example. A hard reset is about the same as installing the factory OS on a laptop, which is stored in a separate protected partition of the hard drive. Most often it is called recovery.

Make this one hard reset possible from special menu, which is called by a certain combination of buttons. But as is usually the case, the button combinations on different models different, and therefore we will present the most common ones. Don't be afraid to explore all the options. You definitely won't make it any worse. Just don’t forget to remove the memory card and SIM card from the tablet, and it is recommended to perform all actions with the tablet connected to the charger
The menu (this is something like a BIOS on a computer) is called up by simultaneously pressing the following buttons:

1) Volume up, volume down, power button
2) Power button, Home button, Volume up
3) Volume up, power button
4) Volume down, power button
5) Decrease and increase volume.
Press for 10 seconds and try each option several times. It rarely works out the first time.
If the menu does not appear, but a picture appears with a fallen robot, you can rejoice. You haven’t rebooted yet, but the problem is probably in the software, and this can be solved.

We press the buttons according to one of the above options and we have:
a) A menu appears. Then we look for Settings, there is formatting the system (Format System) and restarting Android ( Reset Android). Control is carried out by the volume buttons, and confirmation is carried out by the power button.
b) The menu does not appear. We try again, then other combinations, and when the number of attempts exceeds a reasonable limit, we take it to a specialist. This means the problem is more serious.
c) A fallen robot appears. As already said, you can rejoice. Press the power button and turn off the tablet. We wait 5 minutes and try another combination. Attention - after hard reset All installed settings and all data will be deleted . But you will get it completely working device.

If you cannot find the desired combination or a hard reset does not help, move on to the next step.

So, friends, if you are reading this article, it means that you got here by typing in address bar search query: “what to do if the tablet does not turn on,” although I belong to the category of people who would write: “why the tablet does not turn on.”

But all this doesn’t matter, we have a problem - the tablet won’t turn on. There is a device on the table that is now only good for cutting sausage. Let's think logically about how to turn on the tablet if it doesn't turn on. The following reasons come to my mind for this malfunction:

• mechanical failure
• something burned in the tablet
• battery problem
• failure operating system(android crashed) or other software crashed

Now let's look at each reason separately.

Mechanical failure

The first step is to find out if the device has been dropped. For example, your younger brother dropped your favorite toy on the floor while you weren't looking. And if such a fact took place, then it is clear that the tablet does not turn on after a fall. Also, if cracks are found on the screen or damage on the back cover, dents, chips or just scratches, then we can say with 100% certainty that the tablet was flying. In general, if the tablet has fallen and does not turn on, then you should not be surprised by this fact and the solution to the problem will most likely be a repair at the service center, but you can also try to try to revive the gadget yourself.

Electronics failure

A gadget of this level is a box stuffed with electronics that can burn out. various reasons. A power surge, high humidity, or simply a defect can cause the entire device to fail, and such problems are already resolved under warranty. There are times when the tablet turns on but does not boot, or boots but touch screen does not work. In this case, the most likely reason is the video.

Battery or charging problem

If the tablet is discharged and does not turn on, then there is no need to worry, but in the case when the tablet does not turn on and does not charge or, say, charges and does not turn on, then this can become a problem. Battery or charger failure is quite common reason malfunctions.

Software failure

If the tablet does not turn on, then the OS may have frozen or the bootloader has crashed, or maybe some software has simply glitched. In fact this reason the most harmless of all and anyone can solve this problem at home without sending the device for service.

The tablet does not turn on, what should I do?

What should we do if the Android tablet does not turn on? To solve this problem, we have compiled an algorithm of actions on how to fix a gadget if it does not turn on. If nothing happens after each completed item, move on to the next one.

• Inspect your mobile device for mechanical damage.

• First charge it in the network for 10 minutes, and if necessary, connect it to the computer using USB cable maybe the tablet just doesn't turn on after complete discharge. If after charging it does not turn on at all, then most likely you will have to take it to a service center. If the tablet is charging but does not turn on, then we proceed further according to the algorithm.
• Try holding down the power button for 10-20 seconds, if that doesn’t help, then simultaneously hold down the power button and the volume up button, similarly for a couple of tens of seconds.

• If you have reached this point, then probable cause in the software, for example, after flashing the firmware the tablet does not turn on. This happens, something went wrong and the tablet does not turn on after the update. In this case, the Reset button will help you. Just in case, take out the memory card and SIM card, if there is. Next, use a sharp object to press Reset button, in my case it should be done like this. U different manufacturers Resetting to factory settings is carried out in different ways, I recommend looking on the Internet in advance how to do this specifically on your tablet.

If all the points written above have led nowhere, we recommend that you try to find instructions for turning on your particular model. Otherwise, it is better to turn to professionals, namely, take the device to a service center.

The tablet turns on and turns off immediately, what should I do?

We received letters to our editor asking why the tablet turns on and off on its own. This problem can be solved in the same ways, specifically in three ways. The first is a factory reset from using Reset or HardReset. The second way is to flash the tablet. Well, the third one, if the first two didn’t help, is a trip to the service center along with the gadget.

• It is advisable to wear it in a case that can protect it from damage after a fall;
• when you see that accumulator battery discharged less than 20%, put the tablet computer on charge and do not allow the discharge to drop below 10%;
• Do not allow internal electronics to overheat.

Regardless of the cost and characteristics of the equipment, problems can arise with any gadget. If you are reading this article now, it means that with your tablet computer something bad happened, for example. Before you run to the service center, send your gadget in for repair and pay for diagnostics, you can try to find out why yourself.

The reasons for the breakdown may lie in both the Android OS software and the hardware. Of course, after a serious fall, it will most likely be difficult to fix the problem yourself. But if the tablet stops turning on after installing an application or updating the firmware, then you can easily cope on your own. But first things first: let’s look at the diagnosis based on the symptoms.

The tablet cannot be turned on

There are many reasons why your tablet may not turn on. In order to restore the functionality of the device, the most common failures should be eliminated:

1. First of all, check the battery. As funny as it may seem, many gadget owners simply forget to charge the device on time. Android models, after connecting to power, may not show “signs of life” for another 10 minutes. Still won't turn on? Make sure the charger is working properly.
2. Make sure the power button is working properly. To do this, we recommend that you listen, because when you press, you should hear a click. The problem can be treated with soldering, but it is better to entrust this kind of work to a specialist. In the event that the period has not ended warranty service, especially does not advise doing amateur activities.
3. Make sure the tablet is not damaged. For example, if it spent some time in the hands of a child, then it is worth looking for cracks or dents on the body. In this case, the repair should also be entrusted to professionals, because it will be difficult to independently identify the exact cause of the problem.

Diagnostics and repair at home

If it doesn’t turn on, and you don’t have the opportunity to contact a service center, you should try to revive the gadget yourself. At the same time, of course, you must be aware that if it fails, it may no longer be repairable.

First, you need to exclude the following situation - the device is working, but there is no image. This is quite easy to do. First, you charge the tablet, then turn it off. After 20 minutes, turn it on, wait two minutes and check back cover: It should warm up a little. If everything is this way, then you will have to disassemble the gadget and check the cables. Also, the problem may be hidden in a burnt video card - then the repair will not be complete without soldering.

Failures related to the power supply system are also common. In most Android models, the battery is soldered to the system board wires. Sometimes batteries are connected using a cable or connector. Therefore, you first need to check the contacts. If everything is connected correctly, then we continue troubleshooting.

Often the device may not turn on due to a failure. In this case, it would be a good idea to measure the voltage output from the battery and from the board. To measure the voltage of the board, you need to remove the battery and connect the charger. As a result, you should receive the following data:

• when charging at 5 V, the battery has 3.7 V, and 3.9–4.2 V is supplied from the board;
• when charging at 9 V, the battery has 7.4 V, and 7.9–8.2 V is supplied from the board;
• when charging at 12 V, the battery most often has 7.4 V, and 7.9–12.2 V is supplied from the board.

If your measurements correspond to the above data, then there is no problem with the power circuit. In this case, looking for the reason why the gadget does not turn on is a board malfunction or a bootloader failure. In any case, “self-medication” is contraindicated, and you should seek help.

The tablet computer turns on “halfway”

Let's now consider this case - your gadget turns on, but an endless screensaver with the inscription “Android” or with an image of a broken robot freezes on the screen. Here the reason is software glitch. It usually occurs after installing updates, new applications, forced termination system processes.

What is the best way to deal with this situation? It's worth trying a factory reset. You will lose all your data, but you will get a working device. To perform a hard reset you need to go into RecoVery mode. Depending on the gadget model, pressing one of the following key combinations will help you:

• volume up, volume down and power button;
• power button, home key and volume up;
• power button and volume down;
• power button and volume up;
• decrease and increase volume.

Next, you need to find the “wipe data/factory reset” section, after selecting it, feel free to click “yes - delete all” user data" Then select "Reboot System". Moving between points in RecoVery mode is carried out using the volume rocker, and the selection is confirmed with the power key.

In cases where a hard reset is powerless, you can try to reflash the device. But for this you need to get root rights. In most cases, this means you will void your warranty. In addition, you act entirely at your own peril and risk, so no one gives any guarantees of a positive result. Before you do this, consider contacting a service center.
Of course, with any attempts there is a risk of completely breaking the device. Therefore, without certain knowledge of electronics, you can only do a reset to factory settings and make sure that the charger is working properly.

Typical “diseases” occur especially often in inexpensive Chinese models. If you know about similar problems, then share your experience and methods of “treatment” with our users. Have you finally decided to take apart the gadget? Search online for instructions for your model.

Android tablets have already replaced desktop PCs and TVs for many, becoming part of our Everyday life. Behind Lenovo Tab you can re-read your favorite novel or call your friends wherever they are. Therefore, the unexpected shutdown of the device and lack of response to any of your actions comes as a shock. The owners of these devices immediately run to the service center and pay for imaginary services that actually take no more than an hour of work.

But what then should you do if the tablet goes down, and is it possible to revive it without aggravating the problem? And why did Android turn off even though the battery was not dead?

Diagnostics

Have you noticed that your tablet won't turn on or charge? Preliminary disassembly of the device, with the search for a broken part or fallen wiring, is not The best decision. It is much more effective to conduct an initial diagnosis and find out the reasons why the accessory does not turn on or charge.

The problem is that why the device turns off by itself is not so easy to find out, because even flagship models It only takes a couple of months of work to start to freeze. And now the gadget just turns off and doesn’t turn on, and doesn’t respond to charging. What to do if this happens?

Have you spilled water on your tablet or dropped it, but your Android just turned off and won’t turn on and doesn’t respond to charging? The problem most likely lies in the software.

The reason why the tablet switches off and, at best, the logo lights up when starting up, and then the device suddenly turns off, could be an OS update.

If it does not turn on at all, then it is worth checking the serviceability of the battery and charger. It is possible that the device simply suddenly discharged. If it does not turn on, there may simply be no power. How to fix such a breakdown and what not to do?

Problems with the power supply

If the tablet charges but does not turn on, the OS is to blame. But if the gadget refuses to even charge, what is the reason for the breakdown? Here, the Lenovo Yoga Tablet may have problems with the power supply, which can easily fail if used incorrectly.

Your tablet won't turn on? Remember the last time it was charging and whether the indicator was on then. After that, take the power supply and test it on other accessories. Gadgets not responding at all? This means that the main reason that the tablet does not start is a faulty power supply.

And if the devices are charging smoothly, but the Lenovo device still does not start, then it’s worth checking the other two possible breakdown– battery and power connector. A device with such symptoms does not start due to a dead and completely discharged battery.

The guess is checked in the same way as with the power supply - just move the battery to another device, and then connect the device to the network. If the battery starts to charge, the tablet does not work due to a broken connector. I ignored all your actions and the other gadget did not start - the battery needs to be changed.

Hardware failures

Not only an unexpected system update causes the tablet to turn off, but also various hardware failures. This could be either a manufacturing defect or the consequences of improper use of the tablet.

Due to excessive humidity or low temperatures Condensation can lead to board corrosion. Extreme temperatures also cause battery degradation. Therefore, you should not immediately complain about the update if the accessory is switched off. This may be a consequence of improper use. Hardware failures are much more serious than a software failure, so you shouldn’t fix them yourself.

When disassembling the gadget, you can additionally damage several tracks and only aggravate the situation. Not to mention, when cleaning a board from rust, never pour alcohol into it. The permissible maximum is to wipe the damaged area with soaked cotton wool, after which remove the remaining dangerous solution with a regular damp cloth.

And if you have something more serious than rust on parts and it’s wrong installed update– you should contact a professional service center.

OS errors

Most often, accessories turn into “bricks” due to errors in the OS. The reason for this is an update or incorrect installation of pirated firmware by the user, after which the Lenovo tablet stopped starting.

This is a common problem and it’s quite easy to fix; the main thing is not to panic and not to use methods that are dangerous to the device when disassembling. Do not close any contacts and preferably do not touch the inside of the device at all. This will void the warranty until you find out the cause of the problem.

We reset the system

If you haven’t reflashed anything, but it’s a harbinger that Lenovo tablet If the screen turns off and goes dark, there is an ill-fated update, then the only solution is to reset the system. You need to use factory or custom backup copies– remove all manipulations with the OS. This will also delete all information with media files stored on the device. However, the SD card will not be affected.

You need to hold down the Volume Down and Power buttons so you can launch Recovery. This is an application built into the board's memory. It shows all the basic information about the accessory and allows you to perform basic manipulations with the device’s memory.

There, find the file management button and “factory reset”, after which a reboot will occur. Within a minute, you will again have a fully working device at your disposal without any hint of a previous breakdown.

If Recovery does not start, try repeating the steps described above after the gadget is completely discharged. To do this, leave it for several days so that the residual battery charge evaporates, and then connect it to power again for 10-20 minutes.

Have you done everything according to the instructions, but the tablet does not start or constantly reboots? Then a simple system rollback will no longer help the device and you will need to completely reflash the accessory.

Flashing

If during the installation of the firmware the screen goes out and the tablet switches off (shows no signs of life and does not respond to button presses), but the battery is not discharged and is full of energy, we will prepare for the worst.

When installing a pirated OS, you could have made a fatal mistake, which led to the complete erasure of the previous system and the incorrect functioning of the new one. The accessory itself is fine and the hardware is functional, but without the desired program– she just doesn’t understand what to do when you press the start button. Correcting such an oversight is also quite simple.

After complete discharge, connect the device to the PC and wait until it is somehow recognized by the system. The computer will not want to perceive the device correctly, because it does not have digital signature. But if he is at least somehow recognized, that will already be enough.

Download the firmware reinstallation application for Android and latest version OS from the official website. Choose a system for your needs specific device, if you don't want the screen to go dark again. Wait a couple of minutes to half an hour for the firmware to install, then start the device.

Conclusion

The device breaks down when incorrect installation systems or failed update from the developers. The main thing is not to panic, because any software errors fixable! Try to apply the tips described above. We analyzed each of them in detail possible reasons breakdowns, and also outlined ways to correct them.

Visual instructions in video format can be seen below. Also, feel free to leave your questions in the comments. See you on the pages of the site!

Video instruction

In fact, he is the editor-in-chief of the entire site, always in touch with the best authors. Proofreading and proofreading is his job. An excellent expert in his field. Excellent knowledge of technical nuances electronics. Occasionally writes and publishes original articles.

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