What to do if the phone does not turn on completely. What to do if your smartphone does not turn on

Even modern gadgets with a high level of technology development can fail. There are often cases when your smartphone simply does not want to turn on. Many people fall into a stupor and don’t even know what to do if their phone doesn’t turn on. We will give the most common causes of this breakdown, as well as possible methods solutions.

Why it doesn’t turn on and how to solve it

In most cases, the problem is related to the gadget's battery. A less common option is problems with the operating system. Before taking your device into service center and prepare money for repairs, we recommend taking a few independent steps to identify the problem. The problem may be trivial, which you can solve without outside help.

Battery faults

There are several reasons why your phone won't turn on. Perhaps the battery is simply dead and charging is not having any effect. This is the most popular problem, but there may be several reasons:

• Another reason why Android won’t turn on is that the power button is broken. If you have new smartphone, then it could be a marriage. Then take it back and exchange it for a new copy. Otherwise, you will have to contact a workshop, where they will replace the button for money if the problem really lies there.
• The worst case scenario is that the power controller on the phone has burned out. It is he who is responsible for the charging process of the gadget. The only way out is to take the phone to a service center and then have it replaced.

As you can see, users can solve most problems on their own if the phone does not turn on. To extend the life of the battery, do not frequently discharge the gadget to zero, but use only certified chargers from the manufacturer.

Memory card

The problem may be that you inserted an SD card into the gadget that the smartphone does not support. This may lead to failures in program code and impossibility of inclusion. How to turn on the gadget? Just slide out the wrong memory card. If it still does not activate, you may have to reflash your smartphone.

Beforehand, always read the specifications which memory cards your mobile device supports and up to what capacity. You can also get advice from mobile showroom sellers.

Incorrect system update

1. Hold down the "Volume Up" key.
2. Without releasing it, hold down the Home key.
3. At the same time, press the third “Power” key.

On some smartphones, the transition is carried out by pressing “+.- volume” and the “Power” button. Using the volume keys, you need to move the slider to the line “Wipe data/ factory reset", and then confirm your choice by clicking "Yes - delete all user data".

You will be able to clear the cash and data section. But be careful as all personal data (photos, contacts, videos and apps) will be lost. If there is something important on your phone, contact the service center.

This is relevant if loading your phone hangs at the “Android” icon. This also indicates that the firmware is not working correctly. On some devices there is a special button that can only be pressed with a needle or toothpick.

Viruses

If your phone won't boot, there may be files operating system have been damaged by some virus. Here you will need to reflash the phone. In some service centers, specialists will be able to restore the phone’s functionality by cleaning it from viruses. To avoid such situations, we recommend downloading applications only from official store"Play Market", and also install an antivirus. You can choose ESET or Dr.Web for mobile devices.

If your phone does not turn on, this can make any user nervous, but in any case, before taking the device to a service center, you can try to provide first aid to resuscitate the smartphone. Problems due to which the phone does not turn on can be either software, for example, a problem with the firmware due to an unsuccessful update, or hardware, for example, due to a failed battery.

Below we have tried to put together a lot of tips that will help you figure out why your phone won't turn on. If none of the tips helped you, please describe your problem in the comments.

The phone does not turn on after repair.

If you decide to disassemble the phone yourself, and after assembly it does not turn on, then the problem may be that you simply forgot to connect power to the motherboard of your device. You should disassemble it again and make sure that the power circuit from the battery to motherboard not broken and all cables are in place. If you have a multimeter, try checking the voltage on the battery, or after assembling the phone, try putting it on charge. Almost all phones notify you when charging starts, even if the device is turned off.

What to do if water gets into your smartphone

Let's look at the hardware reasons why the smartphone won't turn on.
One of the reasons may be falling into water. What to do if your phone falls into water? First, remove the battery, you need to do this as quickly as possible, then dry your smartphone with a hairdryer. Control the air; it should not be hot, otherwise the touch glass and some other components will simply begin to peel off. Then, without inserting the battery into the smartphone, put it in a warm place. It is worth noting that you do not have much chance of salvation and it may not be possible without losses. In particular, the buttons on the device may stop working. If you have dried your smartphone, but it does not turn on, it needs repair at a service center. The worst thing that can happen is replacing the system board, which, by the way, It costs as much as a smartphone itself.

The smartphone does not turn on after being completely discharged.

This problem is observed in some modern smartphones. In particular Sony phones. Some Sony phones had such a feature that it was impossible to turn them on after being completely discharged if the phone was in this state for a long time. One thing helps - long charge battery with a current of 2A. And these are almost all chargers.

In any case, as I already wrote above, you need to put your smartphone on charge for several hours. Usually the problem goes away on its own. You can try charger with a higher current strength, for example, 1.5 or 2 Amperes.

Also try making your smartphone.

Check the battery. The phone may not turn on due to a faulty battery.

This prerequisite. If you have a removable battery and can install another one, do so. Sometimes, although not often, the problem that prevents your smartphone from turning on may be the battery. By the way, is your battery fully charged? Maybe this is the case?

With some phones, especially if the phone is several years old, the actual battery charge may not match what your phone shows. If your phone won't turn on, try charging it for a few hours. It is possible that the battery will charge and the phone will turn on.

The battery wears out very quickly. Many manufacturers mobile phones They give a one-year warranty on the device itself, and half a year on the battery. The reason for battery failure is quite simple - a very heavy load on it. We constantly charge our phone, and as you know, batteries lose their charge with each charge-discharge cycle. For example, standard lithium ion batteries installed in our phones work properly under load for no more than two and a half years.

Check the charger.

If your smartphone is dead and it won’t turn on again, maybe it’s a charging issue? Try charging your device from your computer. If the phone shows no signs of life within half an hour, the problem is not with the charger. If the phone seems to be charging, but cannot charge, check the charger on another phone. It is quite possible that it will need to be replaced with a new one.

The phone does not turn on after being dropped. Mechanical damage.

Smartphone manufacturers like to say that their phones cannot be scratched, drowned or broken. Manufacturers give their phones Gorilla Glass screen protection, IP67 water resistance, shockproof casing, and so on. Despite all the phone protection measures taken by companies, it often happens that the phone does not turn on after being dropped. For example, on asphalt or falling into water. Unfortunately, all that can be done at home after a fall is to see if the battery, power cable or display cable has come loose, if there is a sound or vibration signal to turn it on.

Do something more with dropped phone It's unlikely to work at home. To do this, you need to check the voltage on the battery and on the system board. If your phone is dropped and won’t turn on, and you don’t have the necessary tools at home, you will have to take the phone to a service center.

After the firmware the phone does not turn on.

One of the most common reasons why a phone may not turn on is due to an incorrectly installed firmware or update. After flashing or updating the phone does not turn on due to incorrect installation of files. In this case, you will need to flash the phone. For example, if your samsung phone, then you will need to download the firmware from the official Samsung website and the Odin flasher program. Using this program you can flash your phone. All settings and files on your internal memory, but there is a possibility that the phone will turn on.

If Lenovo phone won't turn on, then in this case you will need to enter Recovery mode by simultaneously pressing the power and volume up keys. In the Recovery menu you will need to select the wipe data/factory reset menu item, and then Yes - delete all user data. Unfortunately, different phones have different ways to access the Recovery menu. If you are sure you installed official firmware or an official update, then contact the manufacturer’s authorized service center, they will restore the firmware.

But we recommend you try perform a Hard Reset by resetting the phone to factory settings. Very often this helps if the phone does not turn on. Below we have selected key combinations for popular phones.

Samsung phone won't turn on: Press and hold the volume rocker up, the center menu button and the power button at the same time.

LG phone won't turn on: Press and hold the power button and volume down button at the same time, then select wipe data/factory reset.

Doesn't turn on Huawei phone : Press and hold the Volume Up key and the Power button at the same time. You can try pressing the home button, volume up key and power button.

If your other phone does not turn on after flashing, write the exact model in the comments. We will try to help you.

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

It often happens that after updating or installing a program, your phone turns on and immediately turns off. Usually it looks like this: the phone turns on, the logo appears, the boot process takes place and the phone goes into an eternal reboot or turns off. There can be a lot of problems here, from the firmware to the battery. If you have a problem with your phone after flashing or updating the device, then roll back to the previous firmware or reset the settings. It will help.

Sometimes the phone turns off while the device is booting up. Consider your phone does not turn on and the advice from the previous paragraph will help you. You must perform a HARD RESET or flashing the device using a computer.

If you have not updated the firmware, then the whole issue may be the power button, which “sticks” and turns off the phone. Unfortunately, this happens very often, especially if the phone ends up in water. In almost all smartphones, the button is soldered to the motherboard and can be replaced.

If The phone turns off and turns off immediately after the download is complete, when you see the desktop and icons, then try deleting the latter installed programs, if of course there is enough time for this.

The phone may turn off immediately due to the battery. Check the battery and system board cables. Even if a smartphone has a “non-removable” battery, removing it is not that difficult. In any case, if you are sure that the problem is not in the firmware, then you can most likely find out exactly the problem due to which the phone turns on and off immediately at a service center. Again, the problem is either in the firmware or in the power circuit.

These simple steps can help you provide first aid if your smartphone won't turn on. If none of these points suits you, take the device to the store if it is under warranty or to a phone repair service center if it is no longer under warranty.

If problems arise with a wet gadget, do not connect it to the mains and stop pressing the buttons. as soon as possible and only then follow the advice in this article.

If you are sure that the inside of the smartphone is dry, feel free to continue.

1. Force restart your device

Your phone may be turned on but just frozen. In this case, the screen may be dark and not respond to any actions. So first try restarting your device using the hardware keys.

How to Force Restart iPhone

On iPhone SE, iPhone 6s, iPhone 6s Plus, and older models, hold the Home key and the top (or side) button for 10 seconds or more until the Apple logo appears.

On iPhone 7 or iPhone 7 Plus, hold down the Side key along with the Volume Down button for 10 seconds or more until you see Apple logo.

On an iPhone 8 or iPhone 8 Plus, hold and immediately release the volume up key and then the volume down key. After that, press and hold the Side button until the Apple logo appears.

How to force restart your Android smartphone

Press the Power button and Volume Down key at the same time and hold them for 10-15 seconds. If successful, the device will reboot automatically or display a menu on the screen in which you will need to select the restart command.

Some Android smartphones can reboot using other buttons. If the device does not respond, search the Internet for a key combination to restart your particular model.

2. Take out the battery and put it back

If your phone has a removable battery, remove the cover and remove the battery from the device. Wait at least 30 seconds and put the battery back. Then try to turn on the phone in the usual way - using the power button.

3. Put your phone on charge

Connect your phone to a power outlet using the original charger. If the charging indicator does not appear on the display within an hour and you cannot turn on the device, check the integrity and cleanliness of the connector, as well as the condition of the power cable and adapter. If possible, try other outlets, replace the cable and/or adapter.

4. Reset the device to factory settings

If after trying to turn on the screen the screen lights up, but the device does not boot properly, try restoring the factory settings using the hardware buttons.

During a system reset, you may lose personal data that was not synchronized with the server. Don't do this if you're afraid of erasing important information.

How to restore original settings on iPhone

Connect your phone to your computer using a cable and launch iTunes. Then force restart your iPhone (see step 1). When you see the Apple logo, continue to hold the buttons until recovery mode appears on the smartphone screen.

After this, a window with further instructions should appear on your computer monitor. Click "Update" and follow the system prompts.

iTunes will download the necessary software for your phone. If this process takes more than 15 minutes, the iPhone may exit recovery mode. In this case, press the forced restart buttons again and hold them until the device returns to this mode.

If the update works, the phone can turn on without resetting the system. If not, then in the iTunes window, click "Restore" to restore the factory settings.

How to restore original settings on an Android smartphone

Make sure your smartphone is turned off and try the following combinations to reset:

• Volume up key + power button;
• Volume down key + power button;
• Volume down key + Volume up key + Power button;
• Volume Down key + Power button + Home key.

You need to press all the keys at the same time and hold them for about 10–15 seconds. After this, it will appear on the screen special menu, in which you should select the Recovery item, and then the Wipe data / factory reset command. If you don’t see this command in Recovery mode, hold down the power button and momentarily press the volume up key.

After these steps, the smartphone should return to initial settings within a few minutes. If none of the key combinations work or you don't find the necessary commands in the service menu, look for reset instructions for your device model.

Many of us have encountered a problem when a smartphone or tablet suddenly stops turning on or responding to commands in any way. Smart devices do not last forever; a gadget that is truly reliable in all respects has never been created. Manufacturers are forced to reduce phone production costs by using less expensive materials and components to reduce the cost of gadgets. And sometimes this leads to problems with the device.

Why doesn't my Android tablet or smartphone turn on or charge?

If your Android device malfunctions, there is no need to panic and immediately run to the store for a new smartphone. Statistics show that in most cases, your device can be cured at home and at minimal cost. Of course, if the cause of the breakdown was not a fall or water getting inside.

The reasons for the failure of Android devices are divided into two types: hardware and software failures.

Hardware failures

Hardware failures - This physical malfunctions due to which your tablet or smartphone refuses to work. These could be problems with the battery, charger, mechanical damage from impacts and water, even unprofessional assembly - poorly soldered contacts on the circuits, weak sizing, etc.

The first thing you should check is the charger cable. It is the most vulnerable link in the charging chain of a smartphone or tablet. Try using your cable to charge another compatible device. If the charge increases, the problem is with your device. If not, the electrical outlet may not be working: try a different outlet. If this does not help, you need to repeat all the procedures with another cable.

The charger cable must be intact, completely insulated, without visible defects or obvious bends.

An example of what a faulty charger cable looks like

Also pay attention to the charger connector. The contact for charging the phone should not be interfered with by dust and small debris. It is better not to use iron objects for cleaning, as they can scratch the contacts - a cotton swab or brush is best.

So, after performing the above steps, it becomes clear that the fault is not in the charger. Devices with the Android operating system have a small defect when they are completely discharged to zero - they cannot be turned on. Try leaving the phone to charge for several hours and repeat the power-on procedure. Hold down the power button a little longer than usual.

Software failures

Software failures manifest themselves in poor quality software, an untested uncertified system update, or a game that caused critical error in the system; It could also be errors in the firmware and other reasons.

Before taking your gadget for repair, you can try resetting the settings in Recovery mode. It is possible that a software error is to blame.

What is Recovery Mode? Essentially, this is resetting all your data and returning it to factory settings.

These actions will allow you to roll back all changes in your phone to the moment when you bought it and started using it, which means that in this way you can erase all possible software errors that were made while working with the device - downloading and installing applications, downloading multimedia etc.

Video: Reset to factory settings on an Android smartphone

Why the tablet turns on but does not boot completely: possible reasons and what to do

There are several main reasons why this problem occurs when the device does not boot completely. Let's highlight the most common ones.

Phone memory completely full

When the memory of a phone or tablet is completely full, it will turn on sooner or later, but it cannot boast of performance. In this case, it is recommended to clear the memory of unnecessary files:

• remove unnecessary applications or move them to a memory card (microSD), if you have one;
• delete or move photos, videos and music files to a computer or memory card;
• with the help special programs (Clean Master, CCleaner, Cache Cleaner Easy) clear the cache memory;
• reboot the device.

Firmware error

It is not uncommon for problems to arise during the update or flashing process that lead to unpleasant consequences. The most correct thing in this case would be to reset the factory settings as described above or through “Settings”.

Video: Resetting settings on an Android tablet

Mechanical damage

If the problem is mechanical damage, then the user cannot fix anything. Only the intervention of a technician from the service center will help here.

Other problems with turning on an Android tablet or smartphone and ways to solve them

There are several other options for problems related to turning on your Android device.

Let's say your phone or tablet is charging, but categorically refuses to turn on. If vibration occurs when you try to turn it on, then the phone itself is fine, but the display is not responding. Perhaps the contacts have come loose or the screen itself has broken. If the Recovery menu is also not shown, you need to contact a technician for hardware diagnostics.

If it doesn't turn on new tablet, instructions are the same as above. Just don’t need to reflash it, because in this case the warranty disappears. If your device does not turn on immediately after purchase, the best solution it will be refunded immediately.

If, before it stopped responding to commands, your smartphone or tablet had charging problems (the battery discharged too quickly, the device turned off when fully charged), then you will have to replace the battery.

And don't forget about the problem with the power button. Your device may be in good working order, but a faulty power button can paralyze your gadget. Repairing a button is not too expensive, but it should only be done by a professional with special skills.

How to prevent similar inclusion problems in the future

1. No one is immune from breakages and shocks, therefore, no matter how carefully you treat your smartphone or tablet, it is best for safety to synchronize data with Google+ or other storage that you trust.
2. Do not install applications and games from unknown sources on your device. Best to use Play Market. If you cannot do without installing programs from unofficial sites, read carefully technical description and reviews for the applications you want to install.
3. Avoid physical damage, especially while charging the battery. Use protective covers, they will soften the consequences of the impact.

Don’t despair if your smartphone or tablet suddenly malfunctions. If the problem is not mechanical damage or the charger, in most cases you can fix it yourself and continue to use it safely. You should decide to flash the firmware as a last resort - if no other methods help, and the device’s warranty period has already expired.

One day, a tablet or smartphone on which the Android operating system is installed refuses to start and/or does not charge. In fact, everything is not so difficult: you need to accurately determine the reason why the device behaves this way.

Reasons why an Android smartphone or tablet does not turn on or charge

There are several reasons why the device does not take a charge and does not turn on.

1. Completely discharged battery. This happens when the tablet has been left for many days with a discharged battery. Due to self-discharge, the voltage in the battery has dropped so much that standard “charging” is useless. Overdischarge of the battery leads to the fact that attempts to charge it with standard “charging” lead to nothing - the gadget shows no signs of life. At the service center, they open the case or remove the outer covering of the battery (from the end where its own controller is located) and supply the required voltage “bypassing” it with a special power supply. You can use a “smart” charger that “trains” the battery using a different charging algorithm, without opening the battery itself - such as, for example, Cadex brand battery analyzers. If the battery capacity has greatly decreased - less than 70% - a specialist will train it ( full cycles charge-discharge). If training the battery still does not produce any results, the battery can be replaced with the same one. Then everything is put back together and the battery is charged from a standard charger.
2. Faulty charger. Any part in it can fail. This happens less often than a wire break. Anyone who does not want to repair the charger himself buys a new one. Eliminate counterfeits, use the original branded “charger” from the manufacturer of your device, or charge your gadget from the USB port of a computer, TV, car cigarette lighter or USB-Hub.
3. Equipment failure of a smartphone or tablet. Hardware failures and device breakdowns, e.g. broken screen. Take your device to a service center for diagnostics. This will solve the issue of the cost of repairing your gadget.

How to turn on a device if it does not charge at all and does not turn on

There are several common reasons why a device may not turn on.

Android system crashes when starting

If your device does not turn on, there is a problem software glitch Android systems when turned on.

Remove the battery for 10 seconds. For most smartphones, especially inexpensive ones, this is done in a matter of seconds, but a tablet often has to be disassembled. You may need a special set of small screwdrivers.

Tablets and some expensive smartphone models may have a “mikrik” (micro switch) - a hidden small emergency reset button that you press with a paper clip or a needle. Hold it for 10 seconds. It is located both outside and under back cover, next to the SIM card slots, SD card slot, and even in a place where you won’t immediately see it; sometimes it has a barely visible Reset inscription. Perhaps, after such a reset, the Android system on your gadget will start successfully.

Unreliable contact of the battery with the power terminals in the device

It happens that the terminals are worn out due to frequent “jerking” of the battery - this is immediately visible. Bend the terminals slightly outward so that they fit more tightly to the battery terminals. Perhaps the battery terminals themselves are dirty or greasy. Clean them with any solvent (alcohol, cologne, acetone, etc.).

The battery is completely dead

If the problem is with the battery, buy the same one and take the faulty one to a service center for diagnostics. The same applies to the charger.

Why does the device turn on but does not boot completely?

The tablet or smartphone turns on, but the Android system refuses to boot, getting stuck on the green Android robot logo, or loading the Android desktop after waiting for ten minutes. Reasons:

• failure in Android software - for example, when installing unverified Android applications;
• hit by a “virus” - perhaps you visited dubious sites or downloaded an “infected” file. There are also viruses for Android that interfere with the normal operation of your gadget or even completely disable the Android system;
• accidental deletion of Android components when entering the internal memory in Root access mode (full access to Android system and program folders);
• accidental formatting of drive C: in the internal flash memory of the device when logging into this device from a PC (rare, but it happens!) and other careless actions with file system Android;
• Drive C: in the internal memory is full - this often causes the Android system to crash. Free up at least 20% of your disk space. Move non-essential applications to the memory card.

In all cases - except the last one - reinstalling the Android operating system (flashing) on ​​your device will help.

How to get your device to work if Android won't boot

In case of a normal startup failure, it may help hard reset(“hard” reset of Android software). This reset is performed in Recovery Mode(“recovery mode”) For each brand and model of device, switching the gadget to Recovery mode can be done according to a separate scheme. Most often, you hold down the power button, Home button, and one of the volume buttons at the same time. The sequence of actions could be as follows:

1. Hold them down for 10-20 seconds to bring up the ClockworkMod Recovery menu.
2. Select Wipe data/Factory reset.
3. Select the item yes - delete all user data (“Yes - delete all user data”).
4. Then select the reboot system now option (“Restart the system immediately”).

ClockworkMod console menu different versions little changes over time - new functions rarely appear as ClockworkMod is updated, but the ClockworkMod program itself is supported by an increasing number of brands and models of devices with each new update and runs on an increasing number of processors. Whatever version of ClockworkMod you turn out to be, you will have access to all the functions of reinstalling/resetting the Android system.

If the Android system is accidentally deleted from the ClockworkMod console or the Android OS is infected with a “virus,” only reinstalling Android will help.

If you are not sure, rush to an Android service center or similar, where they will help you “flash it”.

Other possible problems with turning on an Android tablet/smartphone and ways to solve them

The list of main problems with turning on the device includes:

1. The device vibrates but does not turn on. Vibration is a signal that the smartphone or tablet is still “alive”. Again, the battery is to blame. Reasons for vibration without subsequent activation:
   • excessively discharged battery. The stored energy is not enough to not only start the system, but at least show the Android logo and turn on the backlight. Charge your gadget urgently;
   • The battery froze in cold weather, despite the fact that it was charged the day before and the device was not used. It does not hold the load (operating current) required by the gadget itself. Charge your device at room temperature. Operating range for normal operation battery - 15–35 degrees;
   • The screen and/or video output modules are damaged. The device works and the Android system starts, but no image is displayed on the screen. The display is broken - they will replace it for you. The video adapter (GPU), which generates the video signal that is then supplied to the display matrix, has failed - they will also replace it, contact the service center.
2. There were software failures on the part of the Android system. The reasons can be different: from “crooked” applications that caused a conflict in the operating system to a “virus attack.” Reinstall the Android system again.
3. Have you "cleaned" the Android system from unnecessary applications and “overwritten” vital system files. Be careful: if you don't know what any file in the /system/ folder does, don't touch it. In this case, reinstalling Android will also help.

Smartphone/tablet does not turn on after flashing or updating Android

The firmware process, despite its apparent simplicity, requires care and a careful approach. The reasons why a smartphone or tablet does not start after flashing or updating the Android operating system are as follows:

• The firmware version is not compatible with this device. Startup is not possible. Install a previously working one Android version(or similar);
• During the firmware, a disconnection occurred from the PC, which caused the download of system Android files the tablet was interrupted. Run this process again;
• Updates released for this version of Android were found to be incompatible with the device. Reinstall previous version Android, then disable system update in its general settings.

In general, this problem may require flashing. There are a dozen programs for flashing Android devices from a PC - among them ROM Manager and LiveSuit.

No power on, but device is charging

Even if there is no power on and the Android system does not start, charging the smartphone or tablet nevertheless continues. Reasons:

• The Android system has a crash at startup, but the charging progress indication is displayed;
• force termination system processes through all sorts of third-party “task managers” and “performance monitors”: closing some of them undermined Android performance, and the system cannot start after a reboot;
• careless actions with system files smartphone or tablet with Root access. Probably some important ones were deleted Android data. Extreme care is required when working with Android system files.

New device won't turn on

The reason why a new device does not start may be:

• factory defects in the battery, processor and/or RAM, power/charge controllers and other components that directly affect the startup and operation of the device. It is revealed immediately, “without leaving the cash register.” Ask for a replacement device;
• The device had been in storage for years and was itself outdated. It was never tested, which caused self-discharge and degradation of the battery. When shipped, the battery is not fully charged. Give it for diagnostics, or choose a more recent gadget;
• a smartphone or tablet fell in a store, sellers may have connected the wrong charger during checks, which caused damage to the device, etc. Such cases are rare.

Other possible power-on problems

There can be dozens of variants of the problem. It often happens that a smartphone or tablet turns on, but the Android system takes a long time to load and constantly freezes, which is why working with it can become a real pain. The reason may lie in the following.

How to prevent problems turning on Android devices in the future

In order for your device to turn on properly and last for many years, you should take a number of measures:

1. Monitor the battery charge and recharge it on time. The first 5 discharge-charge cycles after purchase - completely, from 0 to 100% - must be carried out so that the built-in battery controller is calibrated, and the battery itself reaches the required capacity. In the future, do not allow the battery to discharge more than 10%. At 20% charge, a low battery warning appears on the screen. At 10% this warning is triggered again. The third time it may appear if the charge level is 3–4%. If you continue to work, the gadget will soon turn off spontaneously and will not turn on until you connect the charger to it.
2. Do not drop or spill liquid on the device.
3. Don't try to fill everything disk space internal media and memory card. For normal operation of the device, at least 20–25% of the disk space must be free. This can significantly speed up Android.
4. Don't connect to unverified people Wi-Fi networks and do not visit sites of dubious origin.
5. Do not install applications that “pull” the installation of other applications. If possible, disable the installation unnecessary programs. If this is not possible, it is better not to install such applications. For example, this could be the MediaGet torrent client, which “pulls” automatic download and installation of a bunch of unnecessary applications - usually of an advertising nature - that launch automatically when Android starts.
6. Try to install Android applications from reliable developers - preferably verified by the service Google Play Market. If you find an unsigned APK file ( installation file in Android OS), make sure that the site where you downloaded it from has a lot of positive feedback. Do you trust this site? What about the app publisher? Check out what people are saying about the app.
7. If you are not sure about the security of the applications you download, use antivirus software. But since the antivirus also consumes RAM, you don't have to use it all the time. For example, regularly download a scanner for a one-time check of the device for viruses, and then delete it.
8. Also know about Android Safe Startup Mode. It works when the Android system malfunctions, but the Android system still starts and works at the very least. When you turn off the device, press and hold the “Power off” item - a message will appear asking you to turn it on safe mode. When you restart, the Android system will start, but without user applications.

Video: Android phone does not turn on, reasons and solution

Most problems with turning on the tablet and running the Android operating system are software problems. Solving them is simple. And hardware problems will be resolved by a service center or repair shop, where they will replace any module or component of your device.