What to do if the phone is often rebooted. What if the Xiaomi phone is constantly rebooted and does not turn on: a description of the causes and ways to solve

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

This article is suitable for phones and tablets of all manufacturers of devices on Android: Samsung, LG, Sony, Huawei, Xiaomi, HTC, ZTE, Fly, Alcatel and others. We are not responsible for your actions.

When after the fall of the tablet or smartphone, he began to reboot independently, the reason is that some kind of element has been released or the power supply circuit. You can drop any gadget, but with the repair process it can be more difficult.

Some companies in repair may be completely refused, and other will make only paid repairs. For example, if you have problems with your Samsung smartphone after falling, you first need to make a call to hot line 88005555555 to clarify whether it is possible to repair the product. Often in service centers go to the meeting, but the user repairs pay for their funds.

A smartphone or tablet can be attributed to an unauthorized service. Such centers need to be chosen according to the reviews not to get to the "Haltur". Often, as a result of the fall, the case is broken, the screen is broken, so in this situation it is easy to do without a service center. Experienced users If there is a spare parts to repair the gadget independently.

Cause Reboot Android - Rechargeable Battery

This reason is the most common and manifests itself on new and used phones. It is necessary to consider not tight contact of the battery with a telephone contact group and a poor-quality battery.

Increase

If the cause of the reboot is associated with the battery, then at a certain point, the energy is not supplied or it is incorrectly distributed, which is capable of automatic mode to an emergency reboot. As a result, the gadget can reboot himself.

The lack of energy is called when the device is heated during operation in applications or when the game is incorrectly supplied during the call, when changing the contact is lost. The concept of defective battery:

The manifestation of signs of "bloating" and oxidation.
The consequences of the hull of moisture.
Over time, the natural wear of the battery.
The use of a low-quality non-original battery.
Defective original battery (for example, SAMSUNG situation Galaxy Note.).
The consequences of applying not original chargerWhat can damage the power controller or charging. As a result, the gadget incorrectly distributes energy, it reboots itself in an emergency.

Battery, like any drive, is calculated on a certain number of discharge and charging cycles. If the device is constantly charged, then he simply will lose its potential and hold the charge.

This disadvantage is available at Li-Pol models that have a "memory effect". It is required to charge them up to 100%, and then discharge to zero, after which you can put it again for charging. Li-ion drives of this flaw are deprived.

The critical moment is the need to apply only the "native" charger. This is due to the power of the current specified on the charging. When the manufacturer indicates, for example, 1a, then this value cannot be exceeded.

You do not need to use more powerful analogues on 2A or 1.5A, since it is possible to break the battery much faster, he simply swells. With proper operation, the average cycle is approximately 1.5 - 2 years, and then the battery its properties starts to lose.

You can also note the case that Samsung on Android rebooted when the user tried to print something on on screen keyboard. There was a simple tapping on the screen, which was why the loss of the battery contact with the contact group of the gadget occurred.

Reboots after a water trip

For gadget, water is a huge problem if the smartphone is not protected. In 90% of cases, moisture makes it guarantees that the device fails. The oxidation of contacts is carried out, in a similar situation in the place of moisture, it can "trust. After the injection of water, the device is capable not only to reboot, but not at all.

In this situation it is necessary service diagnosticsAnd often the cost of repair is obtained as the price of a new gadget. Due to water getting to replace system fee or an element on which moisture got.

The service center and the store will refuse, as the operating conditions of the device were violated. Not the fact that after repair work The device will function normally. Therefore, it is best to purchase here. new smartphone or tablet.

Problems with firmware

Firmware is replacing the native operating system Device for modified or more fresh. Highlight 3 firmware options:

Test.
Custom.
Official.

When errors occur in the native firmware of the device, then you can reset to factory settings, which helps in 90% of cases. You can still check on the Internet, what android versions are currently the most relevant. The update process is carried out without your intervention independently, therefore no skills are required.

Increase

With custom firmware, the situation is more difficult. Cyanogen MOD can be considered the only stable firmware, but the developers team broke up, and the band residues renamed themselves to Lineage OS. They make decent developments, but there is one minus: the firmware is installed on its risk. You need to be ready for overheating CPU, reboots, unstable modem, GPS, battery and other key components that affect stability.

Test firmware in abundance is on XDA resources, w3bsit3-dns and others. If you know about the problems of the OS in advance and want to be a "experimental" rabbit, you can install them on the gadget. Such a firmware can damage the device, not to mention cyclic reboot.

Android reboots after installing the SIM card

Increase

On the Internet, many complaints that Lenovo smartphones themselves are rebooted after installing the SIM card. Such a problem is possible on gadgets of other manufacturers. Possible Solution - Replacing the SIM card to the new one. If you use SIM card for several years, then you can upgrade to new firmware Or reset the settings.

If when replacing the SIM card to a new one, the reboot did not stop, then the problem is associated with the device. You can experiment and select only 2G or 3G operation mode. To do this, go to engineering menu By entering a combination * # * # 4636 # * # *.

In some gadgets, only 2G or 3G mode is possible in the settings menu. In some modern devices, this feature is blocked, but you can set the priority of work. If the problem has disappeared, the error most likely consisted in the radio module.

Memory overloaded or problem with flash memory

After physical damage (voltage jump, moisture, hit) can fail the flash memory module. As a result, during the loading of the gadget, it will "fall", which will lead to a system failure. Reboots and the smartphone works again to certain moment.

There may still be a reason for rebooting RAM installed programs. Many users of the application are not closed, but simply turn them on button Home.. As a result, these applications in background mode Stay working, consume energy and rapid memory.

There are still possible braking and loss of tablet / smartphone performance. To solve the problem, you should clean the RAM in the embedded method or special applications.

Other reasons for reloading Android

You must check the memory card if they are in the device. Quite often, the problem may be associated due to a faulty memory card. The first thing you want to perform is to format it, it is desirable to use Extfat or Fat32 formats.

Do not apply for android clusters. After starting different cleansors, you can not only lose your own files, but also break the device. In this situation will help reset or firmware. The best cleaner for the gadget is the backup of information and reset to the factory settings.

One of the obvious options for rebooting the product on Android is its infection of malicious programs. To check the gadget for viruses, apply applications that analyze all the system.

Do not use the dubious software, especially the launchers designed for the desktop. Such applications are capable of calling system malfunctions in Android devices.

If you change the frequency of the processor, you need to return everything as it was. Divisions are subject to the devices to which root was installed to optimize the system operation.

5 (100%) 5 Voice

Android system is vulnerable to various types of threats. Therefore, the situation when phone Xiaomi. Constantly reboots and cannot start, each fifth user appears. Such problems for users may arise regularly, which is why Xiaomi becomes problematic. If the phone is constantly rebooted itself, then it is not worth putting the cross on it, since this problem can be solved.

The situation when Xiaomi reboots in itself, the IT officers call "bootloop". The term translates as a cyclic reboot. At the very beginning, the brand logo appears, and after nothing happens. The operating system is not started for some reason, and then it begins to reboot itself.

Also, this problem can manifest itself on the other hand. For example, the Xiaomi phone unexpectedly reboots itself. There is no clear pattern of such events. This is possible several times a day or within a week.

However, the device may turn off in unsuitable moments for this. Often the causes of such failures are linked in the operating system. Common errors:

damage to OS on MI5 or MI6. This error may occur if the person edited the axis files. If the user got root rights And his phone Xiaomi reboots and does not turn on, then the problem lies precisely in the operating system itself;
update errors. Juses face such a situation when updated to global version MIUI. Also, the phone can start independently reboot due to the installed shell with errors. Such situations arise in cases where the user downloads updates to Siaomi from third-party resources;
independent attempts by flashing. Redmi can load it for a long time or even hang due to an incompatible OS with an aggregate. In addition, the user risks the version of the operating system with errors. Therefore, flashing the Flight is to trust the experts;
turning off the power during the update. Xiaomi can stop working due to a sharp decline in the charge level during the firmware. The manufacturer claims that updates need to be carried out by connecting the phable power supply. However, situations occur when flashing ends emergency. Because of what the gadget stops loading;
infection. The virus inside the OS can harm her in cases where root rights are installed on the system. In addition, there are separate non-working applications leading to "bootloop".

The remaining causes of breakage are mechanical damage or effect of environmental impact. The gadget could fall, because of which the part in the housing was damaged. In addition, if water hit the phone, it can start constantly turning on and off.

Sometimes due to damage. Especially if out of order rAM, processor or communication module.

Reboot problems

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

The second problem is the operation of the gadget in the usual mode, however, in the most inappropriate moments it is independently rebooted. Such shutdowns are repeated 2-3 times a day. There are also situations where the problem appears every hour.

Why the phone does not load

Most often, if the gadget hangs on the logo image, this indicates serious errors in the OS. However, REDMI can issue such a problem and for a number of other reasons. In some users, after a while, the device can boot. Causes of such a problem:

Replacing the main firmware through a PC or standard TWRP.
2% of the battery or its breakdown.
Mechanical damage or fluid 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, then you can attribute it to the store where the device was purchased. However, in this case, the yuzer will have to expect a repair of 2-3 weeks.

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 backup system. On some devices it is done automatically. If the user spent it manually, then the gadget can still be saved.

How to fix the phone if it does not turn on

When the user has a backup copy of the system, you can try to restore the phone. To do this, go to the Rekarya section, after which format all memory. However, the file where the copy of the OS is cannot be touched.

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

If a backups Create failed, you can use another method of recovery. To do this, get a flash card from Furniture. After changing the firmware of the device. Thanks to this solution, you can understand what problem arose in the phone.

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

If these ways did not help fix the phone, then it should be attributed to the service service. Since problems with firmware, after these troubleshooting methods, one can exclude.

Why the phone reboots while working

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

In addition, the user on its negligence can delete the axis file. The third reason is the installation of malicious software or third-party applicationwhich leads to phone reboots.

Often there are situations when mobile devices You have to reboot, however, there are cases when the phone reboots itself.

We will try to figure out what you can do on your own to bring it back "to life", and in what cases you need to rely on the experience of specialists.

Possible reasons

There are several main reasons for rebooting the phone:

mechanical damage (due to impact or fall);
failure in software;
battery failure;
malfunction of elements on the printed circuit board;
impact of moisture on the device (entering the body of the apparatus).

Quite often the reason for the sudden reboot of the phone is the resulting power amplifier or accumulator battery. Energy consumption increases, which ultimately leads to an emergency reboot. Replacing these elements takes place in a matter of minutes and does not hurt the owner's wallet.

The next leader in the number of calls for users of mobile devices to service centers is software failure. The applications previously installed in the phone can conflict among themselves or the gadget owner made an error in choosing a firmware that did not suit this phone model.

The usual moisture ingress can cause a reboot of the device on a par with mechanical damage resulting from the fall of the device from the height, which is why the main or printed circuit board is often damaged.

What to do if rebooted

Pretty frequent problem modern smartphones - spontaneous reboot. Below are the actions that need to be taken to restore the normal operation of the system.

All the time

The reason may wage in a damaged battery. To make sure it is enough to pull the battery from the machine, put on a solid surface and twist. If the battery is easily spinning, it means that it has somewhere there is a bulge or the battery is already starting to swell.

If the problem lies in this, then you should look at the nearest service, as the swollen batteries are not repaired.

In cases where the battery is in order, you need to update software, At the same time, the previously installed applications. If the gadget works on the Android platform, it is recommended to go to Google Play. And select the desired updates, lazy can simply click "update all", but it is better to view the proposed applications to avoid garbage in the phone.

After updating applications, you should start updating the system. If it did not help, it means that you need to contact service center.

When turned on

When the phone is spontaneously rebooted when turned on, the following methods can be applied:

reset settings to factory. Chances of returning the performance of the device in such a way very high. Each device has its own default settings method, all this can be viewed in the instructions for the device;
pull out the battery and then put it back in 30 minutes.

Perhaps the problem is that the phone is simply overheated, there are also cases of blundering buttons for the device. If neither one of the proposed options made results, you need to reflash the gadget. This can be done on your own or contact the service workers.

When talking

In the case when the phone reboots when incoming call Or during a conversation, the likelihood that the battery loses contact with the device. This is explained by the fact that during a long period of operation there is a slight backlash for the rear surface of the battery (the gap between the connecting elements).

With the daily use of the gadget, the housing is excavated, which causes the disconnection of the contacts. To check whether this is the root cause of failure in the device, you need to shake it several times. If the device rebooted again, it means that connecting contacts should be repaid. It will be easier to give the device to the service if it is under warranty.

The next reason for incorrect operation of the device can be a program failure.

Here are three options for solving the problem:

transition to standard settings;
firmware update;
service Center (if none of the above options presented).

Video: how to fix the reboot

After update

Mobile device can reboot after the adoption of the necessary updates. However, there are pitfalls here.

First you need:

turn off the device and remove the battery from it;
after 15 minutes, put it in place and turn on the device again.

If this procedure did not give results, then you carefully follow what updates are installing.

Some applications can block the normal operation of the device or conflict with each other. If you have not noticed deviations before updates, then you need to return to factory settings and restart the device again.

The cause of incorrect operation of the gadget can be the malware, which fell into it along with the updates. In this case, you can also take advantage of the tips outlined, if they did not affect, then you should give the phone to flashing.

When turned on

Another common problem is a reboot of the smartphone when you enable any application or function. The necessary actions are described below to eliminate it.

Cameras

There are often cases when mobile devices are rebooted after turning on the camera. The owners of the advertised iPhone are particularly suffering from this misfortune. The cause of the problem may wage in any application that "caught the virus." It is recommended to start the antivirus, find the cause of concern and restart the system.

If it does not help, then you should return to the standard settings, but before this you need to make a copy of all necessary documents and contacts. The problem can also be specifically with the device of the camera itself, after impact or drop from the height of the phone can move the loop.

The method of treatment is to open the gadget and put it in place. Folk craftsmen often do it independently.

To understand what caused the reboot, it should be remembered whether the device was ever missed or another liquid. In such cases, the device can periodically reboot, which is not very annoying the owner, but it is only the beginning.

If the phone recently experienced all the beauty of water procedures on himself, then the gadget should once again disassemble and dry well. After such tests, the reboot when the camera is turned on is not the worst thing that could be involved with it.

GPS.

What if the phone is restarted after the GPS is turned on?

There are several solutions to the problem:

Bluetooth

This problem is quite often found at the owners. phones htc.. To solve it, you can reflash the phone or simply never use the multi-step transmission function. However, after flashing the device guaranteed to work as before. You can also use simple discharge settings.

As for the disconnection of the annoying function, then everything is not so simple here. Due to the permanent reboot, the user has only a couple of seconds to turn off bluetooth. So, you need to turn off the device, get a SIM card and memory card. So the gadget will work faster, thanks to which the owner of the phone has 10 seconds to turn off the bluetooth, after which the reboot will happen again, but for the last time.

When starting applications

A similar incident is often found at Nokia phones.

To understand the reboot, it is necessary:

try not to use registry cleaners;
do not load too "heavy" applications;
use only official software.

When connected to a computer

Reboot the phone when connecting to a PC can cause malicious programs. Check both devices for viruses. If you cannot resolve the threat on the phone using an antivirus, then the software should be reinstalled or resetting the settings.

Do not forget that the handling method of flashing can turn into a breakdown, which will not be able to fix it. If the problem has not been solved using ordinary methods, then you should contact the service center.

The phone is constantly rebooted on Android

To return the phone on Android to normal operation, you need to check the date recent updates. This concerns not only applications, but also the system itself.

Happy owners samsung phones can conduct an experiment - try moving into safe mode. If the gadget does not go to the reboot, it means that we can safely say that the device extends one of the installed applications.

This is the consequences malicious programs. After removing the application, you must restart the device.

Try to carefully and carefully treat technique, of course, mechanical damage is amenable to correction, but they entail more serious problems. Contact the specialists of the service centers, only this way it is guaranteed to get a prominently working device.

There is quite a lot of reasons due to which the smartphone restarts can occur. If the smartphone began to reboot himself and he at warranty, urgently carry the device to the service center. DIY repair Or the firmware may entail a refusal of warranty service. If you already have no guarantee or you have lost it for some reason - read the article below.

The smartphone begins to reboot themselves after the fall.

If you dropped your smartphone and it began to reboot yourself, then the reason is that a chain of a smartphone is disrupted somewhere or some element has failed. You can drop any device, but repair can be more difficult.

So, some companies may refuse to repair at all, while others make a paid repairs. For example, if you started rebooted smartphone Samsung. After falling, the first thing you need to call 8-800-555-55-55, to clarify whether the device is possible. Usually service centers go to the meeting, but repair you will pay from your pocket.

You can pass a smartphone and an unauthorized service center. Choose customer reviews in order not to run into the frank "Haltur". Very often, the Falls carry such surprises as broken screens, breakdown of the case, so that without a service center in any case can not do. But if you have straight hands, you can try to repair the smartphone yourself, ordering parts, for example on

Smartphone for several years and he began to reboot independently.

Check the battery. It is advisable to replace it with a new one. Almost in all cases the main reason is the dead battery of the smartphone. In many phones, especially in older, the battery can be removed. In modern devices, for example in smartphones Sony, the battery is fixed, but in fact it is also removed, but more effort will be required for this. And straight hands of course.

Smartphone reboots after water from entering.

Water for smartphone is a huge problem, unless of course you have a secure smartphone, such as Sony. Moisture getting into the fee guarantees in 90% of cases the output of the device. There is oxidation of contacts, in this case, it can "trust" in the place of moisture. After entering the water, the smartphone can not only reboot, but to give out other "jokes", for example, not to be included at all.

In such cases, diagnosis is required in the service center and very often, at cost, the repair is obtained as a new device, since in the case of water ingress you have to replace the motherboard or the component to which the moisture has gotten. The store and the service center will refuse to repair, since the conditions of operation of the device were violated. Even after repair, it is not a fact that the device will work fine. Therefore, if you "drowned" your smartphone, I recommend buying a new one.

Smartphone reboots when turned on.

Most likely you were scolded with the firmware of your device or in the firmware there was a failure. What to do in this case? Relief the settings to the factory. In Android, this is done using the volume keys on or off, plus the power key. That is, you need to press the volume key up + the power button or the volume key down + the power button.

You must get into the RECOVERY menu from which you can reset the settings. If you have a "curve" firmware, especially not factory, but some mod, then in this case it will be necessary to return back to the factory firmware. Information How to flash a smartphone is on the official website of the manufacturer, and the firmware files should also be labeled.

Smartphone reboots after installing SIM card.

Sometimes there are such cases. Read on the forums that people complained about smartphones Lenovo.Allegedly Lenovo reboots after installing the SIM card. Perhaps the solution is to change the SIM card to a new one, if you have for several years, try to reset the settings or upgrade to the new firmware, if any. Extreme case - try to insert another SIM card. But here on the face marriage device, repair is required. But be careful! In Russia, with the repair of devices, everything is very bad and very often under repair they understand the flashing of the smartphone. So it was with my smartphone from the company HTC.

Try to select only 3G or 2G forced. To do this, use * # * # 4636 # * # *, with this command you will get into the engineering menu of your smartphone. In some smartphones, set only 3G or 2G network from the settings menu. But in many modern devices, this feature is blocked, instead there is a 3G or 2G priority. If the problem disappeared, then the high probability is that the problem is in the radio module.

The smartphone itself reboots simply or other reasons for rebooting the device.

Check the memory card if it is available. Very often, it can be in a faulty memory card. The first thing to do is format it. It is advisable to FAT32 or Extfat formats.

Do not use the Claimers for Android. Very often after using different cleaners, you are not only deprived of your files, but your device will fail. In this case, it will help reset the settings to factory or flashing the device. Best cleaner For your device - backup files and reset to factory settings! On many sites, it is recommended to use cubs to clean the smartphone from viruses, unnecessary files and speed up the system operation! Know that in a 99% case is a hoax! Do not be done on it.

Do not use questionable programs, especially the launchers for the desktop, which are not sure. Such programs can easily call the Android system system.

If you changed the frequency of the processor, return everything as it was. The owners of the devices that have put root have been susceptible to this problem to "optimize" the operation of the device.

As usual comments and discussion on the article are usually welcome. Very often in the comments, you can find a specific reason for your smartphone or ask a question.

A constant reboot is a fairly frequent problem of modern smartphones, especially noticeable in the cold season. Devices are simply not intended for operation at minus temperature. Note that supercooling is far from the only cause of infinite or frequent "resellers". The source of the problem can be both a decline of the device and software malfunctions. It is described below what to do if the phone itself reboots without stopping.

You can select several basic causes of frequent reboots.

Mechanical impact on the smartphone housing - a drop or a strong blow.
Failures in the operation of the operating system. This includes errors after installing incompatible firmware and updates and a malfunction of certain programs.
Failure or significant loss of battery capacity. The situation is relevant both for old devices and for new ones - but with poor-quality batteries.
Malfunction of motherboard modules responsible for power supply.
Fluid getting into the body of the phone, the oxidation of the elements and the appearance of rust.
Supercooling or overheating.

Problems can be caused by both software and hardware faults. Mechanical damage Displays the components of the device, causing frequent rents.

Unsuitable battery - one of the main causes of such a defect. To check the battery, pull it out of the smartphone and carefully inspect. If convexity or visible damage are noticeable on the surface - the battery should be recycled and replaced with a new one. The discarded batteries are not subject to repair, but in some cases their life time can be extended:

Using a flat screwdriver, separate the sticker from the front part of the battery. Disconnect the chip and set aside, but do not open the controller contacts.
With the help of a thin needle, gently push the battery with the side part, where the controller board used to be.
Press the battery with a heavy object exceeding its housing over the area. Release the accumulated gas, but do not damage the battery.

Important! The above method will help extend the battery life for several days, but the replacement of the ACB should be carried out as soon as possible.

If the problem was in a faulty battery - reboot will stop for some time. Fully eliminate the defect is capable only by replacing the battery.

Phone reboots when starting android

If the gadget is rebooted each time the methods can help the following methods.

Perform full reset Through Recovery. On models different manufacturers The entrance to the recovery is slightly different. Universal method - When you turn on the phone, clamp the "volume down" buttons and blocking when the Android icon appears - release the loudness. Navigating the menu using the volume switches and power button. Select "WIPE DATA / FACTORY RESET", then confirm the selected action. Restart the device "Reboot System Now" team - the problem will disappear if the endless reset is caused by the wrong firmware.
Disconnect the battery and leave the device for 20-30 minutes in the off state. Then insert the battery back - in some situations, the method can help.

Important! After complete reset, all your data, accounts, photos and other personal information will be deleted. Conduce the procedure if the gadget is rebooted due to errors when firmware or update.

When you turn on the camera

The camera application becomes a reboot on old iPhone after iOS updates before latest versionand in the case of infection with viral software. Check the device with antivirus or roll back to previous version Systems to eliminate faults.

After activating GPS.

Some Android smartphones can reboot when the system is turned on gPS navigation. The main problems and solutions of this defect are described below.

Old SIM - Map: Some smartphone models are incompatible with SIM cards of operators. Try replacing the SIM card to a new one or contact the mobile service center of the mobile phone provider.
Memory Card: SD - a card can also cause a reset when enabled GPS. Remove the memory media from the phone and check whether the malfunction disappeared.
Incorrect operation when firmware: Perform a hard reset if the gadget is rebooted after installing the modified version of the OS. How to perform the procedure described in the picture.

When you turn on Bluetooth

Instant response after activating the file transfer function - a frequent problem of HTC models.

Eliminate malfunction can be executed Hard Reset.But in this case, your information and accounts will be deleted.
Bluetooth usually takes a few seconds for switching on - try disable the function when the device is restarted. Access to the option is possible through the "cortex" of notifications - as soon as Android and the main menu is loaded, disable the multimedia data transmission.

When talking

If the gadget performs a reset when talking, check the battery contact with the main board. Perhaps, after a long operation between the battery and the connector, the gap appeared, eliminate which can be fixed by the battery for double-sided tape.

When starting applications

Some programs cause android reboot due to bad optimization or errors during execution. The simplest I. effective solution - Delete the "problem" application. Perhaps the problem is not in the program itself, but in certain drivers or incorrect operation of the OS. In this case, a complete reset of settings will help.

When connecting to PC

If, after connecting to the computer, the gadget is restarted, make sure that the following problems are missing:

The USB cable is connected correctly, and the cord does not have physical damage.
Android-phone or Windows PCs are not infected with malicious software.
Compatible drivers are installed on the computer. If for some reason the utilities required for the work are not loaded, download them manually from the manufacturer's website.

Conclusion

Android I. IOS smartphones Can be restarted for different reasons. In some situations, the fault is caused by incorrect firmware or applications, in other - physical damage to the device body. Repair of the program part can be performed at home, but in other cases it is advisable to contact the manufacturer's service center.