The smartphone periodically reboots. Consequences of mechanical damage

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, if it gets inside the phone, it can cause a short circuit. various contacts, starting from the power button and ending with 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 more often unused applications, A modern games with heavy graphics, select according to system requirements.

Damage to electronic components

A smartphone consists of many electronic components- motherboard, controllers, processor, memory module and others. They may be damaged as a result external influence(fall, blow) or due to banal exhaustion of a resource. In any case, failure of one of the components leads to malfunction 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.

There are times when Lenovo phone owners encounter a problem spontaneous reboot while taking photographs, while talking, launching various applications, etc. Why is this happening? Let's try to figure it out.

What to do?

In order to normalize the operation of your device, you should take a number of actions that directly depend on the nature of the failure.

Reboot on power on

In cases where the phone reboots itself during startup, you should return the factory settings. Often, this way the device is fully functional again. Each model has its own reset method.

Constant reboot

A similar reaction can be observed in cases of a damaged battery. To check this, you should take out the battery itself, place it on a hard surface and twist it. If the battery spins without special problems, which means you need to replace it.

During telephone conversations

In cases where the device reboots during incoming call, or during a conversation, you should contact the service center. The cause may be loss of battery-to-battery contact. You can also solder it yourself connecting contacts, however, without the proper skills it is quite risky.

When taking photos

It is not uncommon for the phone to reboot on its own when you turn on the camera. Such a breakdown is usually caused by a malicious program - a virus. You can get rid of it using an antivirus.

If your device rebooted itself, but you managed to determine why this was happening and solve the problem, write in the comments. This information will be useful to other users.

Smartphones from the Samsung Galaxy line, like any other mobile devices, are subject to software and hardware failures from time to time. One such problem is the periodic or cyclic reboot phone. It can cause the user a lot of problems or even make it impossible to use the device normally. Let's look at why Samsung restarts on its own and what to do in such cases.

Possible reasons for Android reboot and how to fix them

There are several reasons leading to unauthorized restart of Samsung:

failure of the power supply;
mechanical damage to the gadget;
moisture getting under the device body;
failure of any module on the board;
software failure.

Let's try to figure out the reasons ourselves incorrect operation device and, if possible, fix the problem yourself.

Start off Samsung diagnostics Galaxy A5 or another smartphone or Galaxy line follows by determining the type of problem. All malfunctions can be divided into two types:

Mechanical (hardware). Consists of damage (failure) of any element or module.
Software. Caused by malfunction installed software or operating system.

If your Samsung Galaxy phone reboots on its own, the first thing you need to do is put the device into safe mode. In this state, only the pre-installed applications, A third party utilities are temporarily disabled.

To activate on Samsung Galaxy S6 Edge or other device in safe mode, you need to:

Use your smartphone in this mode for a while. If the phone does not reboot on its own, we can say with great confidence that the failure lies in the software. provided by Samsung. Otherwise, the fault should be looked for in its mechanical or hardware part.

Mechanical faults of Samsung Galaxy

If your phone keeps rebooting, remove the battery and visually inspect it for bulges, dents, or other defects. It is also a good idea to check the voltage at the battery outputs using a tester. Acceptable rate– 3.7 V in a discharged state and 4.2 V in a fully charged state. Cause self Samsung reboots Galaxy A3 or another model may have low voltage. In this case, the power element should be replaced with a new one.

At long-term operation mobile phone between the battery and rear panel a small gap appears. And if the phone turns off in a vertical position (for example, during a conversation), the reason may lie precisely in the insufficiently tight fit of the battery to the contacts of the device.

Mechanical damage to the device as a result of a strong impact on a hard surface or moisture getting under its body can lead to unstable operation and reboot of the Samsung Galaxy A5. And if this happens to your smartphone, it is better to take it to a service center, since not everyone can disassemble a mobile phone and determine the faulty element on their own.

Samsung Galaxy software glitches

Unlike mechanical damage, software problems can most likely be eliminated at home. The main thing is to correctly understand what exactly the essence of the problem is. Towards the emergence software failures, as a result of which it reboots itself samsung phone, usually leads to:

conflict of installed software;
incorrect updating of system applications;
exposure to malware.

Let's look at each option in more detail.

Installed software conflict

If you notice that the Samsung Galaxy S3 or a device of another model began to reboot on its own after installing a program, most likely the problem lies in its conflict with existing software. In this case, you need to get rid of such a utility:

After execution specified actions V system cache“casts” may remain erased application. You should also get rid of them. This can be done through the standard Android OS:

Incorrect update of system applications

Updates to pre-installed software (for example, programs) can also cause unplanned restarts of Samsung. Play Market, Google Services Play, Maps, etc.). This is due to the fact that new versions of certain applications are not always suitable for specific model phone.

If you suspect that the mobile phone is rebooting itself due to incorrect update, you will need:

Exposure to malware

When downloading to Samsung Galaxy programs from third-party sites there is a risk of picking up mobile virus, which will force Android to involuntarily reboot. That is why it is recommended to download all software only from Play Market or Samsung Apps.

To get rid of malware, you need to:

If none of the above methods helped get rid of the failure, the only thing left is

Let's look at the main reasons why an Android phone reboots on its own: what causes this and how to fix this or that problem. It’s interesting that both Chinese “NoName” brands and famous flagships like Samsung Galaxy are susceptible to the flaw, HTC One, or Sony Xperia. Let's understand the reasons.

Mechanical damage

Let's start with the leader of all troubles - falls. This also includes blows, careless use, and the use of a smartphone for other purposes (opening bottles, hammering nails, etc.). These may seem like funny incidents, but they happen everywhere. The phone is designed for calls and work, but not for such events. Yes, there are shock-resistant models produced by companies like CAT, but there are only a few of them.

The methods of “treatment” are banal to the point of disgrace: buy a cover, a bumper and safety glass. The protection is flimsy, but periodically saves. This will prevent you from breaking motherboard, processor blade, memory, camera module and vital cables. But it’s still worth going to the service to accurately understand the reason for the reboots.

Firmwares and everything about them

Have you often heard from friends about “firmware”? In short, this is the replacement of the “native” smartphone OS with a more recent version, or a modified one. There are 3 options:

official;
custom;
test.

If you start to slow down native firmware device (too many applications, not updated for a long time, viruses, residual files cache), then you can reset settings to factory defaults– should help in 90% of cases. It’s also worth looking on the Internet to see what Android version relevant for smartphones at the moment. The update process occurs independently without your intervention, so no skills are required.

With custom ones it’s more difficult. The only stable foreign firmware can be considered exclusively Cyanogen Mod, but this team disbanded, and the remnants of the team renamed themselves Lineage OS. Their works were really worthy, but had one significant drawback: The firmware was installed at your own peril and risk. Also be prepared for reboots, CPU overheating, unstable battery, GPS, modem and other key components that affect stability.

As for the test ones, which are posted in abundance on resources like 4PDA, XDA and analogues. If you are going to use your smartphone as a “test subject” and know about the problems in advance, install it. Others are categorically not recommended to engage in such things without knowledge of the hardware. This is the easiest way to turn a device into a “brick”, not to mention cyclic reboots.

Battery

The battery, like any storage device, is designed to a certain amount charge/discharge cycles. If you constantly charge the device, sooner or later the battery will simply lose all its potential and will not hold a charge. A similar drawback is typical for Li-Pol models with a “memory effect”. The unit must be charged to 100%, and then discharged to 0. Only after this can it be charged. Li-Ion drives are free of this flaw.

Critical point: you must use only “native” charger. The point is the current indicated on the charger. If the manufacturer indicated, for example, 1A (Ampere), then the value cannot be exceeded. Therefore, you should not use more powerful analogues of 1.5-2A, since you can “kill” the battery much faster. It will simply swell. Average cycle at correct operation limited to 1.5-2 years. Subsequently, the battery begins to lose its properties.

Another factor is contact oxidation. If moisture has accumulated inside the device, then this may be the reason for the reboot. If the battery is removable, remove it, dry the smartphone, wipe all contact pads with alcohol as carefully as possible and insert the drive after 30-60 minutes. The swollen one must be replaced.

Motherboard defects and manufacturing defects

This category is the most unstable due to the fact that there are many reasons for the breakdown of contacts, cables and other elements; only full analysis and checking each component individually. Often the defect is caused by a fall, “curiosity” (opening a smartphone to see how everything works and subsequent careless assembly), moisture, dust and more.

Less common is a manufacturing defect, which affects no more than 1-2 gadgets per 100,000 devices. The manufacturer often indicates this himself. Also look at thematic forums, look for a topic with your model and look for characteristic “sores”. If you haven’t dropped, drowned or opened the device, but it reboots, then something is shorting inside. It is better to send such a smartphone under warranty. You will lose time, but you will get a working analogue.

Memory problems

Installation large number applications are highly not recommended due to conflict certain files among themselves. This is especially true for programs for working with cameras, GPS, data, antiviruses and cleaners. Each has its own operating algorithm, so reboots are common.

Firstly, leave only 1 option certain applications. Costs extra format sd card, if files were placed on it. Don't forget about

A common problem with Android: a smartphone (or tablet) periodically reboots spontaneously. A reboot can occur:

when working in one or some applications;
during installation or removal of applications (in this case, the installation or removal procedure is interrupted);
at rest.

Uninstalling apps

Most often, an unauthorized reboot is associated with unstable work one of the applications. The pattern here is simple: the more you install and uninstall applications, the faster than Android will start to glitch. If you use 3-5 programs, then your device will be able to work for a long time without problems. And if you install every day new game, then delete it and download the next one, then you will have to reset the settings more often than in the first case.

By and large, in Android everything is about the same as in Windows. One application can be installed and uninstalled without harming the operating system. Otherwise, it will cause failures, and after removal it will leave behind a bunch of garbage. This often depends on the skill of the developer and the purpose of the application. If the goal of the game is to trigger ads on your smartphone and turn your device into a money-making machine, guess what the quality of the game itself will be and its environmental friendliness for Android.

Remove applications, after installation of which the smartphone began to reboot. If in normal mode I can’t do this, enter safe mode ().

Virus check

Viruses and malware can cause crashes and reboots. The following are suitable for checking the system:

Dr.Web v.9 Antivirus Light

Page in Play Store: https://play.google.com/store/apps/details?id=com.drweb

Anti-Malware Mobile

Play Store page: https://play.google.com/store/apps/details?id=org.malwarebytes.antimalware

Disabling a memory card

After disconnecting the SD card, repeat the operation that is causing you to fail. If the problem no longer exists, save the contents of the card to your computer, format it and try inserting it into the device again.

Reset settings

Unfortunately this radical method it often turns out the only way Reanimate the operation of a smartphone or tablet. In general, Android periodically needs to be reset, just like Windows periodically needs to be reinstalled. If you are a guru, you can go into the wilds Android systems from command line, find the cause of the problem and fix it without wipe. But if a speedy recovery is important to you normal operation gadget, it may be easier to do a Factory Reset.

The following is interesting: quite often after a complete wipe (resetting settings), you log into your account Google and your device begin to restore all applications that were installed at the time of the factory reset ( My applications in Play Market). But the device starts working absolutely normally. If this is exactly what happened to you, we can assume that most likely the cause of the reboots was systemic problems, caused by a long-deleted application.

Read about how to reset settings.

If your device reboots cyclically after an unsuccessful flashing, a reset is not an option.

Troubleshooting Hardware

This is the most bad reason of all possible. The device may reboot due to iron factors such as:

1. Overheating

If a reboot happens while playing a game, watching a movie, high quality or when working with a resource-intensive application, the problem may be overheating. Find out what the temperature of the gadget is. AnTuTu or even will help you with this:

2. Damage due to fall or liquid contact

If your gadget has been in such situations, take it to an official service center for diagnostics. Otherwise, you will not fully understand the reason for the reboots.

3. Factory defect

For example, if in a new device with the back cover, there is a burning smell. Here the advice is the same: go to the store with a demand to replace it, or to a service center with a request to fix it.

1) Do not install unverified applications (or install, but be prepared for reboots, freezes and other surprises).

2) What fewer apps you install, the longer Android will live without resetting the settings. What is meant here is not quantity. simultaneously installed, and the total number ever installed games, programs, utilities.

3) What more apps, the more difficult it is to identify faulty and unwanted ones - those that kill the system, cause glitches, contain malware, etc.

4) If your model is “hot” on her own, try not to give heavy load in hot rooms.