• Spontaneous hard reboot of the phone on Android: saving your favorite gadget. Why does an Android phone reboot itself - reasons and explanations

    Situations often occur when mobile devices you have to reboot, but there are also cases when the phone reboots itself.

    Let's try to figure out what can be done on our 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 why your phone reboots:

    • mechanical damage (due to impact or fall);
    • software failure;
    • battery failure;
    • malfunction of elements on the printed circuit board;
    • exposure to moisture on the device (entry under the device body).

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

    The next leader in the number of calls from mobile device users to service centers is software failure. Applications previously installed on the phone may conflict with each other, or the owner of the gadget made a mistake in choosing firmware that did not fit the given phone model.

    Normal moisture ingress can cause the device to reboot, along with mechanical damage resulting from the device falling from a height, which often damages the main or printed circuit board.

    What to do if it reboots

    Quite a common problem modern smartphones– spontaneous reboot. Below are the steps you need to take to restore normal system operation.

    All the time

    The reason may lie in a damaged battery. To verify this, just remove the battery from the device, place it on a hard surface and twist it. If the battery rotates easily, it means there is a bulge somewhere or the battery is already starting to swell.

    If this is exactly the problem, then you should take a look at your nearest service center, since swollen batteries cannot be repaired.

    In cases where the battery is in perfect order, it is necessary to update software, and at the same time previously installed applications. If the gadget works on Android platform, it is recommended to go to Google Play and choose necessary updates, the lazy ones can just click "Update All", but it's better to go through the suggested apps to avoid clutter on your phone.

    After updating the applications, you should start updating the system. If this does not help, then you need to contact a service center.

    When turned on

    When the phone reboots spontaneously when turned on, you can use the following methods:

    • reset settings to factory defaults. The chances of restoring the functionality of the device in this way are very high. Each device has its own method for returning default settings; all this can be found in the instructions for the device;
    • remove the battery and then put it back after 30 minutes.

    Perhaps the problem is that the phone is simply overheated; there are also cases of the device’s power button sticking. If none of the proposed options produces results, you need to reflash the gadget. You can do this on your own or contact service workers.

    When talking

    In case the phone reboots when incoming call or during a call, there is a high chance that the battery loses contact with the device. This is explained by the fact that during a long period of operation, slight play occurs on the rear surface of the battery (the gap between the connecting elements).

    When using the gadget every day, the case shakes, which causes the contacts to disconnect. To check if this is the root cause of the device malfunction, you need to shake it several times. If the device reboots again, then you need to resolder the connecting contacts. It will be easier to send the device for service if it is under warranty.

    Next reason incorrect operation The device may have a software glitch.

    There are three possible solutions to this problem:

    • transition to standard settings;
    • firmware update;
    • service center (if none of the above options helped).

    Video: HOW TO FIX RESTART

    After update

    The mobile device may reboot after accepting necessary updates. However, there are pitfalls here too.

    To get started you need:

    1. turn off the device and remove the battery from it;
    2. After 15 minutes, put it back in place and turn on the device again.

    If this procedure does not produce results, then be more careful about what updates you install.

    Some applications may block the normal operation of the device or conflict with each other. If before the updates you did not notice any deviations in the operation of the gadget, then you need to return to the factory settings and reboot the device again.

    The cause of the gadget’s incorrect operation may also be malicious software that got into it along with updates. In this case, you can also use the above tips, if they do not work, then you should give the phone for flashing.

    When turned on

    Another common type of problem is the smartphone rebooting when you turn on any application or function. The steps required to resolve it are described below.

    Cameras

    It is not uncommon for mobile devices to reboot after turning on the camera. Owners of highly advertised iPhones especially often suffer from this problem. The cause of the problem may lie in some application that “caught a virus.” It is recommended to run an antivirus, find the cause of concern and restart the system.

    If this does not help, then you should return to the standard settings, but before that you need to make a copy of all necessary documents and contacts. The problem may also be specifically with the device of the camera itself; after an impact or fall from a height, the cable may come off the phone.

    The method of treatment is to open the gadget and put it in place. Craftsmen often do this on their own.

    To understand what caused the reboot, you should remember whether the device was ever dropped into water or other liquid. In such cases, the device may periodically reboot, which does not irritate the owner much, but this is just the beginning.

    If your phone has recently experienced the beauty of water treatments, then you should disassemble the gadget again and dry it thoroughly. After such tests, rebooting when the camera is turned on is not the worst thing that could happen to it.

    GPS

    What should I do if my phone reboots after turning on GPS?

    There are several options to solve the problem:


    Bluetooth

    This problem occurs quite often among owners. HTC phones. To solve this, you can reflash the phone or simply never use the multimedia transfer function. However, after flashing the device, it is guaranteed to work as before. You can also use simple reset settings.

    As for disabling the annoying function, everything is not so simple here either. Due to the constant reboot, the user only has a couple of seconds to turn off Bluetooth. So, you need to turn off the device, take out the SIM card and memory card. This way the gadget will work faster, thanks to which the phone owner has 10 seconds to turn off Bluetooth, after which it will reboot again, but for the last time.

    When launching applications

    A similar incident often occurs with Nokia phones.

    To understand the reason for the reboot you need to:


    • try not to use registry cleaners;
    • do not download too “heavy” applications;
    • use only official software.

    When connected to a computer

    The phone may reboot when connected to a PC. malware. Check both devices for viruses. If you were unable to eliminate the threat on your phone using an antivirus, then you should reinstall the software or reset the settings.

    Do not forget that the artisanal flashing method can result in a breakdown that can no longer be fixed. If the problem has not been resolved using conventional methods, then you should contact a service center.

    Phone keeps rebooting to Android

    To return your Android phone to normal functioning, you need to check the date latest updates. This applies not only to applications, but also to the system itself.

    Happy owners of Samsung phones can conduct an experiment - try switching to safe mode. If the gadget does not reboot, then we can safely say that the device is wearing out one of the installed applications.

    These are the consequences of malware. After deleting the application, you must restart your device.

    Try to treat your equipment carefully and with care; of course, mechanical damage can be corrected, but it entails more serious problems. Contact service center specialists for help; this is the only way to guarantee that you will get a properly working device back.

    Now we will try to figure out the reasons why your Android phone/tablet reboots on its own and we will try to understand how to fix the problem. It can reboot simply by lying on the table, in your pocket, when connected to a charger, during a call, and in other cases.

    We will structurally divide the article by types of reasons to make it easier to read and find the item you need.

    This article is suitable for all brands that produce phones on Android 9/8/7/6: Samsung, HTC, Lenovo, LG, Sony, ZTE, Huawei, Meizu, Fly, Alcatel, Xiaomi, Nokia and others. We are not responsible for your actions.

    Battery as a reason for Android reboot

    This reason is the most common and can occur in both used and new phones.

    Here we should consider both a low-quality battery and poor contact between the battery and the contact group on the phone.

    Increase

    If the reason is in the battery, then at some point energy may not be supplied to the modules, or it may not be distributed as needed, which leads to an emergency reboot of the device in automatic mode. In this case, the phone may also turn off itself.

    During shaking, contact is lost; During a call, energy is not supplied correctly; While playing or using applications, the phone heats up, which causes a lack of energy and so on.

    A defective battery means:

    • Defects in the production of the original battery (remember the case with Samsung Galaxy Note).
    • Using a non-original battery low quality.
    • Natural wear and tear of the battery over time.
    • Consequences of moisture getting under the housing.
    • Signs of oxidation or “bloating” appear.
    • Consequences of use original cable charging, which has damaged the charging or power controller, as a result of which the smartphone does not distribute energy correctly and reboots itself in an emergency.

    Decide current problem can be done by installing a new battery and performing appropriate performance tests.

    From practice. One client samsung phone on Android it rebooted itself the moment it tried to print something on on-screen keyboard. The result was tapping on the screen, which contributed to the loss of contact between the battery and the contact group of the phone itself. We managed to calculate it by chance.

    Also, if you use a non-original and, especially, cheap cable, the voltage may be supplied incorrectly, which causes the system to fail.

    Reboots itself after updating firmware/Android OS

    Along with the previous problem, firmware is also one of the most common causes.

    IN in this case you need to analyze the situation yourself and remember: your Android phone or tablet started randomly rebooting after updating the firmware or not. There can be either a planned update of the Android version “over the air” or forced installation via a cord.

    We will also include this item:

    • Failed to receive Root rights to the phone.
    • Conflict of installed applications. In this case, try using the phone for a while and see if problems appear.

    Problems with the flash memory module or the memory is overloaded

    As a result of physical damage (shock, moisture, power surge), the flash memory module may fail. As a result, when the phone is loaded, it “falls”, which causes the system to crash. A reboot occurs and the phone works again until a certain point.

    The second option is to overload the RAM installed applications. Many users do not close applications, but simply minimize them Home button. As a result, these applications remain running in background consuming not only RAM, but also energy (did you notice that the battery quickly began to run out?). There may also be a loss of performance and slowdown of the phone/tablet. Cleaning RAM using special programs, or in a built-in way.

    Reboots cyclically - turned on/off

    In this case, we consider both the battery and the firmware.

    From practice. The client had a cyclic reboot and could only be stopped by removing the battery. The reason turned out to be a damaged power button cable, which resulted in a short circuit and the phone turned on until it reached the logo, and then turned off. From the outside it looked like a cyclic reboot.

    Reboots itself after a shock/fall

    Everything is clear here: any of the phone’s modules could fail, or one of the cables could have microcracks. To determine exactly the damaged element, you will need diagnostics with disassembly of the device. This can only be done at a service center.

    Do not try to disassemble the phone yourself. This way you can only make the situation worse by damaging other modules. Do you need this?

    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 operation of 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 a new game every day, 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 harm to 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 cause ads to appear 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 is often the only way to revive 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 unpleasant reason of all. 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 caused by falls or liquids

    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.

    Even the most reliable equipment can suddenly fail, and Android devices (even from well-known brands) are no exception. One of the most common problems which occurs on phones running this OS - constant reboot(bootloop). Let's try to figure out why this problem occurs and how to get rid of it.

    There may be several reasons for this behavior. They depend on many circumstances that need to be taken into account: whether the smartphone has been subjected to mechanical damage, whether it has been in water, what type of SIM card is installed, as well as what software and firmware are installed inside. Let's look at the reasons for reboots.

    Reason 1: Software conflict in the system

    A headache for developers of Android applications and firmware is the huge number of device hardware combinations, which makes it impossible to test all existing ones. In turn, this increases the likelihood of conflicts between applications or components within the system itself, which causes a cyclic reboot, otherwise known as a bootloop. Also, bootloops can cause interference in the system by the user ( incorrect installation root, trying to install incompatible application, etc.). The best method To fix such a failure, reset the device settings to the factory state using recovery.

    If this does not bring results, you can also try - on your own, or using the services of a service center.

    Reason 2: Mechanical damage

    A modern smartphone, being a complex device, is very sensitive to extreme mechanical stress - shocks, shocks and falls. In addition to purely aesthetic problems and damage to the display, the motherboard and the elements located on it suffer from this. It may even happen that the phone’s display remains intact after a fall, but the board is damaged. If your device crashed shortly before the reboots began, this is most likely the reason. The solution to this kind of problem is obvious - a visit to the service.

    Reason 3: Battery and/or power controller failure

    If your smartphone is several years old and it starts to periodically reboot on its own, there is a high probability that the reason is a failed battery. As a rule, in addition to reboots, other troubles are also observed - for example, . In addition to the battery itself, problems with the operation of the power controller are also possible - mainly due to the above-mentioned mechanical damage or defects.

    If the reason is in the battery itself, then replacing it will help. On devices with removable battery It’s enough to buy a new one and replace it yourself, but devices with a non-separable case will most likely have to be taken to a service center. The latter is the only rescue measure in case of problems with the power controller.

    Reason 4: Faulty SIM card or radio module

    If the phone starts to reboot spontaneously after inserting a SIM card into it and turning it on, then this is most likely the reason. Despite its apparent simplicity, the SIM card is quite complex electronic device, which can also break. Everything is checked quite easily: just install another card, and if reboots do not occur with it, then the problem lies in the main SIM card. It can be replaced in the company store of your mobile operator.

    On the other hand, this kind of “glitch” can also occur if there is a problem with the radio module. In turn, there can be a lot of reasons for this behavior: starting from manufacturing defects and ending with the same mechanical damage. Changing the network mode may help. This is done like this (note that you will have to act quickly in order to be in time before the next reboot).

    Reason 5: The phone was in water

    For any electronics, water is a mortal enemy: it oxidizes contacts, which is why even a phone that seems to have survived a swim breaks down over time. In this case, reboot is just one of many symptoms that usually accumulate on an increasing basis. Most likely, you will have to part with the “drowned” device: in service centers They may refuse to repair if it turns out that the device has been in water. We recommend that you be more careful in future.

    Reason 6: Bluetooth Problems

    Quite rare, but still relevant bug in work Bluetooth module– when the device reboots, you just have to try to turn it on. There are two ways to solve this problem.

    • Don't use Bluetooth at all. If you use accessories like wireless headset, fitness bracelet or smart watch, then this solution is definitely not suitable for you.
    • Reflashing the phone.

    Reason 7: Problems with the SD card

    Sudden reboots can also be caused by a failing memory card. As a rule, this problem is accompanied by others: media server errors, the inability to open files from this card, the appearance of “phantom” files. The best solution will replace the card, but you can first try to format it by first doing backup copy files.

    Reason 8: Presence of a virus

    And finally, the last answer to the question about rebooting is that a virus has entered your phone. Additional symptoms: one of the phone applications suddenly starts downloading something from the Internet, shortcuts or widgets appear on the desktop that you did not create, certain sensors turn on or off spontaneously. The simplest and at the same time radical solution to this problem would again be to reset to factory settings, the link to the article about which is presented above. An alternative to this method would be to try.

    We got acquainted with the most typical causes of the reboot problem and options for solving it. There are others, but they are mostly specific to some specific model Android smartphone.

    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, 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 the settings to factory settings - this 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 work was truly worthy, but had one significant drawback: install the firmware at your own peril and risk. Also be prepared for reboots, CPU overheating, unstable work 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 cyclical reboots.

    Battery

    A battery, like any storage device, is designed for a certain number of 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 1.5-2A analogues, since you can “kill” the battery much faster. It will simply swell. The average cycle with proper operation is 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, it means there’s something short inside. It is better to send such a smartphone under warranty. You will lose time, but you will get a working analogue.

    Memory problems

    Installing a large number of applications is highly discouraged 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.

    Read more: