Why does the phone turn off by itself? possible causes and solutions to the problem

Spontaneous shutdown of the smartphone is a common problem that gadget owners regularly face. There are quite a few reasons why the phone suddenly turns off by itself. In this article, we will analyze the most popular of them.

When the phone turns off by itself, it creates some discomfort and interferes with normal operation and communication. Most often, this situation is faced by owners of old equipment, but in some cases, problems can also occur with new devices.

If this is a one-time issue, don't panic. The reason why Android turns off may be a banal failure in the system. But, if it is regular, the gadget is recommended to be taken to a service center.

However, some tasks can be dealt with at home. Full instructions for problems different origin you will find below.

Power key not working

Mechanical malfunctions of the power button often cause the phone to turn itself off.

It is impossible to replace the key yourself at home. If this situation happened with a new gadget, there is a factory marriage. When contacting the warranty service, the equipment will either be repaired or replaced with a new one.

But sometimes the breakage of the power button is preceded by bumps and falls. Modern smartphones are quite fragile, and even a slight impact on the ground can lead to malfunctions and malfunctions. The solution is the same - contacting the service center to replace the power off key.

You can also diagnose a malfunction at home. It is necessary to simultaneously hold down several combinations (for example, the volume rocker and mute) and look at the result. If it does not respond properly, then repair is needed.

Software failure

Another option - the most rosy for most owners of equipment - is a failure in operating system. Errors in its operation may cause the cell phone to “freeze” when performing a certain task and the inability to turn it off (or reboot) in the standard way. You can try to manually remove the battery and turn it on again. However, this method should not be abused.

Battery

If the phone constantly turns itself off, does not hold a charge and slowly charges, there is only one way out - to put another battery.

Of course, you can extend the life of your old battery for a few days by controlling the background and downloading a few special programs but the battery won't fix it.

Moreover, a swollen or mechanically damaged battery can be life-threatening. There have been cases where a defective battery caught fire simply in the hands of users, or near their faces, causing severe burns.

Therefore, you should not delay with the replacement of the battery. This will not only affect the comfort and performance of the device, but also protect you from health risks.

Contact oxidation

Even those who carefully and carefully handle their smartphones are not immune from another type of mechanical damage - oxidation of contacts on the motherboard.

Moisture can get on contacts and junctions in the following ways:

• With a sharp change in temperature (condensate is released).
• Frequent carrying of equipment in hands in hot weather.
• Getting caught in the rain.
• Fall into a container of water.
• Other.

Modern top models are already equipped with moisture resistance, but so far there is no such function in budget cellular phones. Moisture enters the phone through connectors, seams and speakers, becoming a catalyst for oxidative processes.

As in the previous cases, this problem cannot be dealt with manually, and it is recommended that the phone be repaired by the masters.

Removing excess from the system

Android is positioned as an open platform, so each user can personalize it to suit their tastes and needs. Most often this happens by downloading software from the Play Market.

Sometimes these are several applications, and sometimes their number reaches such proportions that the equipment simply cannot cope with the processor load, and constantly turns off.

The solution in this case would be:

1. Check the authenticity of the operating system. Only installing a licensed Android OS ensures that the smartphone will normally cope with the tasks.
2. Clear the storage of unnecessary programs. Optimal loading - up to 15 different applications.
3. Check if the installed utility conflicts with the OS. You can find out on the forums, or in the reviews directly under the program page in the Play Market.

Screen breakage

Sometimes a broken screen is mistakenly perceived as a cellular failure to turn on. It is provoked by malfunctions in the gland, which, as a rule, are preceded by falls or contact of the device with water.

On most gadgets, the reboot is accompanied by a small vibration response that can be felt even if the screen does not show signs of life. It is worth checking for a response, if not, take it to the master.

Mechanical damage

Different types of “flights” are a real disaster for fragile devices. In most cases, they are brought to the service after the fall.

You can check the malfunction yourself by slightly bending the smartphone in your hands. If it turns off, then repair cannot be avoided.

If, after the impact, the back cover in the area of ​​\u200b\u200bthe camera or battery began to warm up, then most likely the root of the problem lies in the lagging of the thermal pad. It is possible to give final conclusions only after parsing the gadget.

Moral obsolescence

The average service life of a cell phone is 3-5 years, provided there are no breakdowns and careful treatment. But many people use them for much longer, so over time they have to visit repair points more often.

Equipment needs to be regularly changed and updated, because even now it is problematic to get spare parts for devices that were released 5-6 years ago. And some malfunctions of outdated models refuse to be repaired at all.

Therefore, when buying, pay attention to the OS version - if it is below 4.4, then the service will be in question.

Working in the cold

Gadgets are not recommended to be exposed to temperature fluctuations - this affects the battery. When working in the cold, many devices refuse to work and turn off on their own - this is normal practice. The range of suitable temperatures is indicated in the User's Manual.

Memory card

If, when installing a memory card, the smartphone does not work well, is buggy or turns off completely, it must be removed and replaced with another one.

Consider the reasons why MicroSD may conflict with the OS:

• Speed ​​class incompatibility.
• Factory marriage in the memory card.
• Mechanical damage to the slot that slows down its operation.

Conclusion

Regardless of the source of the problem, it is not recommended to repair the smartphone yourself, especially if it is under warranty. Proper repair, which will not negatively affect further work, can only be carried out in a service center.

Video

Very often, our today's problem appears due to the waste of the device's battery. It is not so easy to detect this phenomenon. After all, few people will independently begin to check whether the battery is well adjacent to mobile phone. Especially if there were no problems with it before.

To eliminate this possibility, remove the back cover of your mobile, then press the battery firmly against the phone. It remains only to check whether the device will turn off. Yes? Then the reason is clearly something else. Not? Here you have found the source of the problem.

Battery

Why does the phone turn off by itself? The next reason for this behavior is nothing more than a battery problem. Its malfunction almost always leads to the fact that the mobile device starts to turn off and on on its own. Don't be surprised by this.

To eliminate this trouble, it is enough just to replace the faulty component. Usually after purchase new battery the phone stops turning off automatically.

Battery charge

The reasons don't end there. Why does the phone turn off by itself? Check battery charge. Not the most common, but the case that takes place in practice. It is the low battery of the phone that causes the device to turn off.

This situation is quickly resolved. All you need to do is charge your phone and then turn it on. You will notice how the problem will disappear by itself. From now on, just keep an eye on the battery charge. Then you won't have any surprises with your phone. In any case, you will be prepared to turn off the device.

Viruses

The thing is that if you notice how the phone turns off on its own and then turns on, it's time to check the device for viruses. They are the cause of most gadget malfunctions. It is impossible to predict exactly how the phone will react to a particular virus.

To exclude infection, it is recommended to use special anti-virus programs for mobile devices. Or take the gadget to a service center. There they will help you not only to check the phone, but also to "cure" it if necessary.

Applications

Several options are possible here. First - you have little space left on your mobile. In this case, you just need to free up space. Delete some of the most unnecessary programs or games - and the problem will disappear by itself.

The third one is the presence malware. To fix the situation, you will have to find and fix the problematic utility. After that, you don’t have to wonder why the phone turns itself off and on (Samsung, Nokia or some other). After all, the problem will disappear. Its reappearance is possible when the gadget is again cluttered with programs.

System failure

Why does the phone turn off when charging and not only? The last common variant of this behavior is failures in the operating system of the device. They happen simply from time, and from viruses, and from the amount installed programs and applications. But most often, problems in the operating system are the result of incorrect firmware.

Usually after flashing all problems are eliminated. If even after that nothing helped, it's time to change the phone. Indeed, sometimes the reason lies in the malfunction of the equipment. In such a situation, only complete replacement gadget will help. Now it’s clear why the phone turns off by itself. Fixing this problem is not as difficult as it seems. The main thing is to know where to start. By the way, you should think about firmware only after excluding all of the above reasons.

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

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

1. Force restart your device

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

How to Force Restart iPhone

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

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

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

How to force restart your Android phone

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

Some Android smartphones may reboot using other buttons. If the device does not respond, look on the Web for a key combination to restart your particular model.

2. Take out the battery and put it back in

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

3. Charge your phone

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

4. Reset the device to factory settings

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

During a system reset, you may lose personal data that has not been synchronized with the server. Do not do this if you are afraid of erasing important information.

How to restore original settings on iPhone

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

After that, a window with further instructions should be displayed on the computer monitor. Click "Update" and follow the system prompts.

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

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

How to restore the original settings on an Android smartphone

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

• volume up key + power button;
• volume down key + power button;
• volume down key + volume up key + power button;
• volume down key + power button + home key.

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

After these steps, the smartphone should return to its original settings within a few minutes. If none of the key combinations work or you do not find the commands you need in the service menu, look for the reset instructions for your device model.

A mobile phone is considered a huge multi-functional system, equipped with a powerful processor, large built-in memory and great functionality.

But sometimes the equipment fails and the phone starts to “fail”, for example, turn on and immediately turn off. Not in all cases it is worth contacting a specialist, often you can fix the problem yourself.

Hardware problems often affect turning on the phone. There may be several reasons:

1. Overheat processor or other parts of the gadget. In this case, you need to pull out the battery and let the phone lie down in disassembled form.
2. Faults control elements- various controllers can fail. For example, when a charge controller fails, it can always inform the smartphone that there is no charge on the battery, so the phone will immediately turn off. Only contacting the service center will help here.
3. Oxidation terminals and contacts. Usually this happens if the phone is “drowned” in water, or it has been in a damp room for a long time. You can remove the battery, check and gently clean its contacts, it will also not be superfluous to check the terminals on the phone.

The solution is simple - remove the battery and clean the terminals, or leave the smartphone to charge for a day.

Software bugs

The spontaneous turning on and off of the phone or tablet is also affected by software failures and violations.

The problem may be:

• installation incompatible software- Resetting the settings and rebooting will help;
applications;
• malfunctions ON- flashing the gadget can help.

Charging or battery problems

Most mobiles that failed were exposed to water. Process oxidation happens for a very long time and it is impossible to predict how the device will behave next time. There are several: hair dryer, leave overnight on the battery or move to a warm place.

Other Solutions

When the phone constantly restarts, turns off or turns on by itself - this speaks first of all of what is happening failure software ensure. Also, the reasons may be hidden in mechanical damage after a fall or shock. In these cases, you can go to the master to determine the breakdown.

But often the reason why a smartphone or tablet turns on and immediately turns off can be a trifle and it is possible to fix the problem yourself by flashing the device or resetting it to factory settings.

Phone turns off by itself

Initially, you need to determine the reason for turning off the phone:

• software failure;
• mechanical damage;
• incorrect battery operation.

If, as a result of a fall, the smartphone ceased to function normally and began to turn off, the reason is damage details instrument. If there are no mechanical injuries, then the battery is good and the problem is with the software.

Mechanical damage cannot be repaired with your own hands, so you should contact the repair.

Battery is defective or loose

The main reason for the breakdown of most smartphones is moisture ingress. To save the gadget, cleaning and drying is required, otherwise the phone may become inoperable. If the battery is defective, it must be replaced.

Battery can just walks away and you can put a thin sheet of paper or cardboard between the back cover and the battery. If the battery is in working condition, then you can only clear terminals from pollution and the problem will be solved by itself.

Low battery

This can happen at any time, even when the charge is full, or maybe at 40 percent, 15 or even 5. If the phone turns off at 5/15/25 percent of the charge, you need to do a full reset and clean the device. Then the battery should be recalibrated. If the situation has not changed within 2 days, you should contact the master.

Viruses

When the phone or tablet turns off on its own with a charged battery, it's time to check the device with an antivirus. It is viruses that cause most smartphone malfunctions. You should use an antivirus program to prevent infection of the device.

Software issues

There may be several problems with the software:

1. Not enoughmemory. In this case, you need to free up space.
phone. Do not clog the device with unnecessary programs.
2. Virus. The pest must be found and eliminated.

System failure

The phone may turn off even when fully charged. The reason may be a failure in the device OS, most often due to wrongfirmware. You need to repeat the firmware procedure or contact the service. If the problem still persists, it's time to upgrade. The device may be malfunctioning by itself.

If the device starts to freeze, then the problem is probably in the flash card. It can be simply changed.

When the phone heats up and turns off, there is probably factorymarriage. It's good to have a valid warranty.

One of the worst and most expensive reasons is damagefees when there are no other options other than replacement.

In conclusion, I would like to note that with careful use, the probability of uninterrupted possession of the gadget is very high. Technology, like people, also needs to be treated with care.

Now let's look at the reasons why Android turns off by itself and try to fix the problem. Some reasons can be eliminated on your own, and with some you will have to contact the service center, because. you will need special equipment to fix the breakdown.

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.

Again, it is worth mentioning that the phone / tablet can turn off during a call, game, just in your pocket and other situations. Every situation has its own reason.

Android shuts down due to firmware or installed programs

The most common case and quite easily solved.

As you know, Android is modified by each smartphone manufacturer for a specific model. As a result of mass character, there are flaws in the firmware.

Also, not always applications from Google Play good quality, or one of their updates.

This problem is solved like this:

Android turns off while playing

There are not only games here, but also other resource-intensive applications that load the phone: long viewing of YouTube or a video in the player, various programs with a graphics load, and more.

Did you notice that the phone gets quite hot? As a result, protection can be triggered that turns off the phone and prevents it from breaking due to thermal causes.

Try to search the web for information about your phone model and find out if it is characterized by such strong heating under load, or is this an isolated case. There is a possibility that you will have to contact the service.

In addition, during prolonged heating, an incorrect supply of energy from the battery to the device modules may begin, resulting in a failure, overheating. But we'll talk about the battery a little later.

Android turns off during a call

In this situation, the reasons are most often the following:

• Damaged modem module (sensor cellular communication). This can happen both as a result of natural wear and tear (you have been using the phone for many years), and as a result of physical damage (shock, fall, moisture, etc.). In this case, only replacing the module in service center. It will be difficult to diagnose such a breakdown on your own, because. all other options must be ruled out.
• The problem is with the battery. During a call, the battery incorrectly starts to "distribute" energy to the phone's modules, resulting in a failure and the phone turns off. The best way check - put a similar battery.
• Software errors of the phone firmware itself or installed applications(if the call takes place on Viber, Skype, Telegram and other instant messengers with a voice call function). What to do was considered at the beginning of the article.

The battery as the reason for the arbitrary shutdown of Android

Most often, it is the battery that is the reason why your phone turns off by itself.

Let's not dwell on cases where you have a non-original battery installed or it has worn out for more than 2 years. Consider a situation where the phone is fairly new (less than 2 years old) and the battery is factory installed.

Above, I already touched on the situation when the battery incorrectly distributes energy to the smartphone modules and a failure occurs that causes a shutdown.

If access to the battery is easy (just removed back cover), then visually assess the condition of the battery: is there any swelling, signs of corrosion or the presence of dents, cracks.

But, in practice, I had to deal with such a situation.

A phone from the "sale of cheap models in a communication store" segment. Those. some not very expensive models, designed for the mass consumer and going on sale.

As it turned out, the battery did not fit snugly against the contact group on the smartphone, as a result of which, when typing or shaking, the contact moved away and the phone turned off without an influx of energy.

OK. This is not your case and a phone from a well-known company, but a flagship model.

There is an option that is not charging with the original cable. As a result, the charging and power controller fails, which disrupts the power circuit. Recently, manufacturers have been specifically doing such things so that the user only uses original accessories(Apple pioneer)/ You can only diagnose this in a service center.

Or does your phone turn off in the cold? Batteries don't like to stay in a cold negative environment for a long time, so keep it in your pocket, close to your body. Also in this case, it will be discharged a little faster.