Why does the phone reboot on its own Lenovo. Android reboots itself. Disabled or missing pre-installed apps

Smartphone or tablet, like any other electronic device, may be subject to technical failures.

One of these manifestations is the independent reboot of the gadget, which can occur either regularly or from time to time at various intervals. Today we will look at the main reasons for this phenomenon.

Moisture ingress

Water is an excellent conductor of current and, when it gets inside the phone, it can cause the closure of various contacts, from the power button to the battery controller. The result is random device shutdowns.

CPU overheating

A smartphone is a multitasking device, i.e. we can work with several programs simultaneously. The more programs are running, the more intensively resources are used. Including the heart of the device - its processor - works more actively. The operation of the processor is accompanied by heating, which can damage it. If the throttling system, which we described in detail in, works incorrectly or late, the gadget will reboot.

You need to calculate the capabilities of your device and not keep the processor at maximum load. To do this, close unused applications more often, and choose modern games with heavy graphics in accordance with the system requirements.

Damage to electronic components

A smartphone consists of many electronic components - motherboard, controllers, processor, memory module and others. They can be damaged as a result of external influence (fall, impact) or due to the banal depletion of resources. In any case, the failure of one of the components leads to incorrect operation of the entire device, including constant reboots. This requires qualified diagnostics.

If none of the previous points correspond to your situation, all you have to do is contact service center.

This article will tell you about the reasons why your Android phone or tablet reboots itself and what to do in this case

When, after a tablet or smartphone falls, it starts to reboot on its own, the reason is that some element has failed or the power circuit has broken. Any gadget can be dropped, but the repair process can be more difficult.

Some companies may refuse repairs altogether, while others will only provide paid repairs. For example, if you have problems with your Samsung smartphone after a fall, then you first need to make a call to hotline 88005555555 to clarify whether it is possible to repair the product. Often, service centers are willing to accommodate, but the user pays for the repair at his own expense.

A smartphone or tablet can be taken to an unauthorized service. Such centers need to be chosen based on reviews, so as not to end up with a “hack job”. Often, as a result of a fall, the case also breaks, the screen breaks, so in this situation you simply cannot do without a service center. Experienced users can repair the gadget themselves if spare parts are available.

The reason for rebooting Android is the battery

This reason is the most common and occurs on new and used phones. It is necessary to consider loose contact of the battery with the telephone contact group and a low-quality battery.

Increase

If the reason for the reboot is related to the battery, then at a certain moment energy is not supplied to the modules or it is not distributed correctly, which can lead to automatic mode to an emergency reboot. As a result, the gadget may reboot itself.

A lack of energy is caused when the device heats up while working in applications or while playing, when the energy is supplied incorrectly during a call, when shaking, contact is lost. The concept of a defective battery:

• Manifestation of signs of “bloating” and oxidation.
• Consequences of moisture getting under the housing.
• Over time, natural wear and tear of the battery occurs.
• Use of low quality non-original battery.
• Defective original battery (for example, the situation with Samsung Galaxy Note).
• Consequences of using non-original charger, which may damage the power controller or charger. As a result, the gadget distributes energy incorrectly and, in an emergency, reboots itself.

A battery, like any storage device, is designed for a certain number of discharge and charge cycles. If the device is constantly charged, it will simply lose its potential and the charge will not hold.

Li-Pol models that have a “memory effect” have this drawback. You need to charge them to 100%, and then discharge them to zero, after which you can charge them again. Li-Ion drives do not have such a flaw.

The critical point is the need to use only the “native” charger. This is due to the amperage indicated on the charger. When the manufacturer specifies, for example, 1A, this value cannot be exceeded.

There is no need to use more powerful 2A or 1.5A analogues, since you can break the battery much faster; it will simply swell. With proper use, the average cycle is approximately 1.5 - 2 years, and then the battery begins to lose its properties.

You can also note the case that Samsung on Android rebooted when the user tried to type something on on-screen keyboard. It turned out to be a simple tap on the screen, which caused the battery to lose contact with the contact group of the gadget.

Reboots after water drops

For a gadget, water is a huge problem if the smartphone is not protected. In 90% of cases, moisture penetration guarantees that the device will fail. The contacts are oxidized; in such a situation, the place where moisture gets in can cause a short circuit. After water gets in, the device can not only reboot, but also not turn on at all.

In this situation, service diagnostics are necessary, and often the cost of repair is the same as the price of a new gadget. Due to water ingress it is necessary to replace system board or an element that has been exposed to moisture.

The service center and store will refuse repairs because the operating conditions of the device have been violated. It is not a fact that after repair work the device will function normally. Therefore, it is best to buy here new smartphone or tablet.

Firmware problems

Firmware is a replacement for the native one operating system device to a modified or more recent one. There are 3 firmware options:

• Test ones.
• Custom.
• Official.

When errors occur in the native firmware of the device, you can reset it to factory settings, which helps in 90% of cases. You can also check on the Internet which versions of Android you have. this moment the most relevant. The update process is carried out independently without your intervention, so no skills are required.

Increase

With custom firmware the situation is more complicated. Cyanogen Mod can be considered the only stable firmware, but the development team broke up, and the remnants of the team renamed themselves Lineage OS. They make decent developments, but there is one drawback: you install the firmware at your own risk. You need to be prepared for CPU overheating, reboots, unstable operation of the modem, GPS, battery and other key components that affect stability.

Test firmware is available in abundance on XDA, 4PDA and other resources. If you know in advance about OS problems and want to be a guinea pig, then you can install them on your gadget. Such firmware can damage the device, not to mention cyclic reboots.

Android reboots after installing SIM card

Increase

There are many complaints on the Internet that Lenovo smartphones reboot themselves after installing a SIM card. A similar problem is possible on gadgets from other manufacturers. Possible Solution- replacing the SIM card with a new one. If you are using SIM card several years, then you can upgrade to new firmware or reset settings.

If, when replacing the SIM card with a new one, the reboots do not stop, then the problem is related to the device. You can experiment and select only 2G or 3G operating mode. To do this you should go to engineering menu by entering the combination *#*#4636#*#*.

In some gadgets, it is possible to set only 2G or 3G mode in the settings menu. In some modern devices this function locked, but you can set the priority of work. If the problem disappears, then the error was most likely in the radio module.

Memory is overloaded or there is a problem with the flash memory

After physical damage (power surge, moisture, shock), the flash memory module may fail. As a result, while the gadget is loading, it will “crash”, which will lead to a system failure. Reboots are carried out and the smartphone works again up to a certain point.

Another reason could be that the RAM is being reloaded. installed programs. Many users do not close applications, but simply minimize them using the Home button. As a result, these applications background remain working, consuming energy and RAM.

Here, slowdown and loss of performance of the tablet/smartphone are still possible. To solve the problem, you should clean the RAM using the built-in method or special applications.

Other reasons for Android reboot

It is necessary to check the memory card if the device has them. Quite often the problem may be due to a faulty memory card. The first thing you need to do is format it, preferably using ExtFAT or FAT32 formats.

Do not use cleaners for Android. After running different cleaners, you can not only lose your own files, but also break your device. In this situation, resetting the settings or flashing the firmware will help. The best cleaner for a gadget is to backup information and reset it to factory settings.

One of the obvious options for rebooting a product on Android is to infect it malware. To check your gadget for viruses, you need to use applications that analyze the entire system.

Do not use dubious software, especially launchers designed for the desktop. Such applications can cause system crashes in Android devices.

If you changed the processor frequency, you need to return everything as it was. This problem affects devices on which Root was installed in order to optimize systematic work.

Android system is vulnerable to various types threats. Therefore the situation when Xiaomi phone constantly reboots and cannot start, appears in every fifth user. Users may experience such problems regularly, which makes using Xiaomi difficult. If the phone constantly reboots itself, then you shouldn’t give up on it, as this problem can be solved.

The situation when Xiaomi reboots on its own is called “bootloop” by IT specialists. The term translates as cyclic reboot. At the very beginning, the brand logo appears, and then nothing happens. The operating system does not start for some reason, and then it begins to reboot itself.

This problem can also manifest itself from the other side. For example, a Xiaomi phone unexpectedly reboots itself. There is no clear pattern for such events. This is possible several times a day or throughout the week.

However, the device may turn off at inappropriate times. Often the causes of such failures lie in the operating system. Common mistakes:

• OS corruption on MI5 or MI6. This error may occur if a person edited the axis files. If the user received root rights and his Xiaomi phone reboots and does not turn on, then the problem lies precisely in the operating system itself;
• update errors. Users are faced with this situation when they update to global version MIUI. Also, the phone may begin to reboot on its own due to the installed shell with errors. Such situations arise in cases where the user downloads an update to Xiaomi from third-party resources;
• independent attempts at flashing. Redmi may take a long time to boot or even freeze due to an incompatible OS with the unit. In addition, the user runs the risk of downloading a version of the operating system with errors. Therefore, flashing the phablet should be trusted to experts;
• Power off during update. Xiaomi may stop working due to a sharp decrease in the charge level during the firmware. The manufacturer claims that updates must be carried out by connecting the phablet to power. However, there are situations when flashing ends abnormally. Why does the gadget stop loading?
• infection. A virus located inside the OS can harm it in cases where root rights are installed on the system. In addition, there are individual non-working applications that lead to “bootloop”.

Other causes of failure are mechanical damage or a consequence of environmental exposure. The gadget could have fallen, causing damage to a part in the case. In addition, if water gets on the phone, it may start turning on and off constantly.

Sometimes due to damage. Especially if it's out of order RAM, processor or communication module.

Reboot related issues

There are 2 common failures of Redmi devices. In the first case, when the gadget turns on, the MI logo appears on the screen. After waiting a few seconds, it turns off and then lights up again.

The second problem is that the gadget works as usual, but at the most inopportune moments it reboots on its own. Such shutdowns are repeated 2-3 times a day. There are also situations when the problem appears every hour.

Read also

Why won't my phone boot up?

Most often, if the gadget freezes on the logo image, this indicates serious errors in the OS. However, Redmi can give such a problem for a number of other reasons. For some users, the device may take a while to boot. Reasons for this problem:

1. Replacing the main firmware via PC or standard TWRP.
2. 2% battery percentage or battery failure.
3. Mechanical damage or liquid getting inside the gadget.

The best solution to such a breakdown is to use the services of experts from the service center. If the phone is under warranty, you can take it to the store where you purchased the device. However, in this case, the user will have to wait 2-3 weeks for repairs.

If the user does not want to spend money, and the warranty card has expired, then you can try to solve the problem yourself. It is best to use a system backup. On some devices this is done automatically. If the user did it manually, then the gadget can still be saved.

How to fix a phone if it won't turn on

Once the user has a system backup, they can try to restore the phone. To do this, go to the recamera section, and then format all memory. However, the file where the copy of the OS is located cannot be touched.

In addition, in such a situation, you need to ignore the various updates that the manufacturer offers.

If backup copies failed to create, you can use another recovery method. To do this, you need to remove the flash card from the phablet. Then change the device firmware. Thanks to this solution, you can understand what problem arose in the phone.

Before changing the firmware, you need to charge the phone 100%. Experts recommend carrying out all procedures by connecting the gadget to a charger.

If these methods do not help to fix the phone, then it should be taken to a service center. Since problems with the firmware, after these troubleshooting methods, you can eliminate them.

Why does my phone reboot during operation?

There are only three reasons why the gadget turns itself off and on during use. In the first case, most often, people install non-working updates.

In addition, the user, due to his negligence, can delete the axis file. The third reason is the installation of malware or third party application, which leads to phone reboots.

In general, regular random reboots of the phone should indicate some serious problems in the phone. Is it so? The answer is no, not always. There can be many reasons - from incorrect settings before serious failures in the OS or breakdowns of components.

Reboot at a specific time

If the phone restarts itself, but only at a certain time, it means that you have an active option in the settings for automatic reboot according to a schedule. How to disable it:

Reboot in the cold season

If your smartphone restarts when you are outside in the cold season, there is nothing surprising here. Modern phones are very sensitive to low temperatures. Try not to take it out of your bag or pocket when you're outside to keep the device relatively warm.

The phone is overloaded with a large number of open programs: the equipment cannot handle it

If you have too many programs open on your phone that the device cannot handle at the same time, it will reboot in order to, so to speak, “shed” the extra load. Even smartphones have an instinct for self-preservation.

From large quantities open applications The processor may overheat, hence the same restart to reduce the temperature.

What to do in this case? Determine for your phone the optimal number of applications with which it can easily work without consequences in the form of a restart.

As new programs are launched, reduce the number open source software(close unnecessary ones). This is very simple to do: hold down the “Menu” button at the bottom and in the “Task Manager”, swipe right or left the windows of applications that you will not use for now. Or another option - buy a new smartphone with a more powerful RAM and processor.

Close any apps you are not currently using

Device memory problems

The device memory may be completely full. If the phone does not have enough space to save files during operation, the system will periodically reboot. This helps her free up at least some space by deleting temporary documents that are needed only for the current session.

Check how much free memory your Android currently has, and clear it if necessary:

It would also be a good idea to clean the system from unnecessary files. To do this use special programs eg CCleaner.

The problem may be in the SD card if, for example, the phone starts to reboot while launching the gallery, camera, or when taking photos. The SD card may also be full. In this case, it needs to be freed from unnecessary user files - music, photos, books. Conveniently delete all files on your computer (connect your phone to PC using USB).

The memory card may be damaged. In this case, you need to temporarily change the storage location of the photos taken (instead of a memory card, install an internal drive). After that, connect the phone or the flash drive itself (using a flat adapter) to the PC, move all the files to the computer if possible and format the card. Even if formatting does not help, you will need to replace the flash drive with a new one.

Format the flash drive that was in your phone

There may also be viruses on the flash drive - we will talk about them in the next section.

Virus infection

Update the threat database in your antivirus on your smartphone and run a deep scan. You can also use the Dr.Web Light mobile scanner.

Wait for the scan to complete

If viruses are found, remove them immediately. Restart the phone yourself and check how it works.

Incorrect or broken firmware

Something may trigger a restart in the operating system (firmware) itself. You can start by resetting your phone to solve the problem:

If restoring the original Android settings does not help, you should reinstall the phone OS. For this, it is better to go to a service center.

Battery problems

The battery may overheat: just like with the processor, the phone itself will forcefully reboot the phone to allow it to cool down. How can you help your device in this case: turn off the phone itself, remove the battery for 20 - 30 minutes so that the temperature drops. If the battery is non-removable, simply leave the phone turned off during this time.

The battery may be damaged. This may cause it to overheat. What causes a battery to deteriorate:

• using a non-original charger that does not suit the parameters of your phone (too much current, for example);
• charging using a damaged USB cable;
• using the phone in extreme cold;
• moisture entering the device, which began to oxidize the contacts.

Inspect your battery: if it is swollen, it needs to be replaced immediately. If the battery is “sewn” into the device, visually evaluate the entire case to see if there are any bulges on it. In this case, the best thing to do is take the phone to a service center so that the specialist can tell you for sure whether it’s the battery.

Look at the overall health of the battery

Mechanical damage or defects

If you have already tried everything, but nothing has helped, you should contact specialists at the service center to find out the reasons. Most likely, this is a hardware failure or a firmware malfunction. In the first case, you definitely won’t be able to do anything on your own.

Remember if your phone fell into Lately. If yes, but there are no visible damages on it, this still does not mean that the fall was without consequences - the breakdown may be internal.

A specialist at the service center will disassemble your phone, tell you what’s wrong, and offer solutions.

What could be on the verge of failure: processor, power controller, GPS module, radio module (for example, if the phone began to reboot after connecting a SIM card), various contacts. An example of a situation for contacts: the phone reboots during conversations due to the fact that the device and the battery are connected by weak contacts. In this case, you will simply need to re-solder them.

You need to look for the cause of the problem step by step. First try to observe how the system works with a certain number of programs enabled. If your phone overheats, reduce this number - use only the most necessary utilities. Try checking your phone for viruses. Also reset your phone to factory settings. If all else fails, go to a service center - some hardware part of your smartphone may be damaged.

A constantly rebooting smartphone is a problem that occurs, not as rarely as we would like. There are several common reasons why a phone reboots on its own, and we will try to consider each of them in detail.

It is worth noting that sometimes there is no visible pattern in these restarts, and sometimes there is. For example, they can happen during a conversation, when you are using Bluetooth, or while the device is charging.

Malicious applications

In most cases, spontaneous reboots are caused by low-quality software. Try uninstalling unused applications that may be causing problems. Make sure that your daily programs are verified and released by official developers, and are not fake (downloaded from third-party resources). After all, it could be a poorly written product, and also contain malicious code.

Pay special attention to software that has access to system data or is used to process Email, text messages, etc. Sometimes it happens that the gadget restarts when receiving a text message or, for example, during a conversation.

You may have software running in the background that causes Android to randomly restart. If it's a software issue, try the following steps, preferably in the order listed.

This often helps. If not, read on.

Disabled or missing pre-installed apps

Have you tried disabling programs? If you accidentally go too far and disable the manufacturer's pre-installed applications required to run the Android OS, this may cause a problem with the device starting to reboot.

1. Go to the “Settings” - “Applications” section, there you can sort the installed software and display only system processes in the list.
2. Enable applications that are required for the device to function properly if some of them are frozen.

Now you need to restart your smartphone for the changes to take effect.

Overheat

Many Android devices have the ability to shut down on their own if they get too hot. If you use the device in 40-degree heat, work with it at maximum brightness, with GPS or LTE turned on, or even play, the device will quickly overheat and turn off. This is done so that the increase in temperature does not damage the hardware, primarily the battery. Try not to overload the device during hot weather; in any case, do not play on it.

However, if overheating occurs constantly, even when the gadget is not under stress or in direct sunlight, this is likely evidence of a more serious problem. It can be solved either as a last resort remedy for troubleshooting ( full reset settings), which we will describe at the end, or going to the salon or store where you bought your device and asking to have it repaired.

Unstable battery position (unstable contact)

Of course, this problem only occurs on devices with a removable battery. Eg, Samsung phones Galaxy S4 sometimes restarts without stopping for this reason. Any blow or shock can dislodge the battery, and the cable will move away, as a result of which the power supply to the device will be disrupted, and it will spontaneously turn off or restart.

The most common reason for this is that the back cover is slightly bent and does not hold the battery tightly in place. Another is the displacement of contacts or their physical damage, as connectors wear out over time. For every problem there is a solution.

In the first case, simply buy mounting tape (electrical tape), then attach a small strip of it to back cover so that it holds the battery better. When you turn it on and continue using it, you will notice that the problem with the phone rebooting cyclically has been resolved.

Check the functionality, this manipulation almost always helps.

Android glitches

Sometimes Android system becomes damaged and begins to work unstable all the time due to disturbances caused by external factors (virus attacks, unsuccessful updates, etc.). Also, interruptions in operation may be due to the memory card.

If you are using a flash drive, then take it out, walk around without it for a while, check how the equipment behaves. If everything is fine, format the card through your computer (insert it into the slot, right-click on it in “My Computer” and click “Format”), having previously saved all the data from it in another location, and insert it back. But be prepared that it may need to be replaced.

Attention! If you are not using a flash drive, your only option may be to reset the device. However, remember that resetting will delete all data from the device, so be sure to make a backup copy.

On most Android devices you can perform a Hard Reset by going to Settings - Backup & reset - Reset device. This solution is worth trying in case of constant overheating of your mobile phone.

Button retraction

Sometimes the "Power" button absorbs moisture or debris gets underneath it. Make sure that your gadget does not have this problem. Inspect the key, remember if the smartphone fell into the water. Also check that nothing is putting pressure on the button and causing the mobile to restart.

Faulty equipment

If you've tried all of the above and your Android still reboots without stopping, it's obvious that you've got some kind of problem. Contact the retailer or manufacturer with a problem. If your phone is under warranty, they will fix it for you free of charge.

What else can you do?

It should be said about others simple solutions, which often help. For example, you can do the following:

• seize battery and leave the device without it for 15 minutes. Then insert it and start the device;
• install an antivirus from the application store, for example, from Kaspersky Lab and scan the system for infection;
• insert a new SIM card into the device, since old ones sometimes conflict with modern devices, and they may disconnect when calling.

Perhaps this is all you can do yourself without flashing your smartphone to custom firmware. Try simple options first, then move on to more complex ones. Most likely, you will be able to overcome the problem.