Why doesn't the phone turn on completely? Common causes of problems turning on a smartphone

Black screen and no feedback from your own device will make any smartphone owner nervous. In such a situation, only one question arises: “What to do if the phone does not turn on?”

Unfortunately, no device, regardless of its service life and cost, can work forever and can fail at any time.

The first step is to find out why your phone won't turn on so you can take the correct troubleshooting steps. This article will help you resolve this issue.

Source of the problem

All the reasons why a smartphone does not turn on can be divided into two groups - hardware and software. In the first case, we are talking about direct damage to any part of the device, in the second - about failures in the operating room iOS system(for iPhone) or Android (for Sony, Lenovo, Samsung, HTC, Fly).

Most often, the phone does not turn on after being dropped. One careless movement is enough, and your favorite device has fallen and is lying on the floor. What to do if your smartphone does not turn on after mechanical impact? All that remains is to take it to a service center and listen to the technician’s verdict: repairable/not repairable. Trying to fix such breakdowns on your own is pointless; you can only make the situation even worse.

Often the phone stops turning on after moisture gets on the contacts. In this case, you need to act quickly. Remove the battery and dry the device with a hairdryer on low heat and speed and place it near a heat source.

Now many devices do not provide free access to the battery. If this is your case, then you will have to seek help from a professional.

The smartphone turns off and does not turn on - a fairly common problem for modern devices. When fully discharged, they may well not emit any signs of life, including when connected to charging.

If the phone turns off and does not turn on, it is enough to “recharge” the battery a little using a “toad”. Next, install it back into the smartphone until fully charged. The method will be useful for those who have access to a battery.

It is much worse when the phone does not turn on while charging. If you connected the device to power, and after a while you discovered that it does not work, does not respond to commands and does not charge, then most likely the fault was a failure in the power supply or the device itself.

Hacker attack

No less often, a smartphone stops working due to software glitches. Infection with viruses, memory and RAM clogged to zero, accidental deletion or damage to important system files- all this can cause the Android smartphone not to turn on. In such a situation, there is no need to panic, because the problem can be solved, and quite simply.

What to do if your Android phone won't turn on? Try to restore functionality using full reset settings. For different models Recovery mode starts in its own way.

If you don’t know the correct combination for your smartphone, then try pressing and holding the following keys at the same time:

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

If you can’t reset it yourself, you can always contact a service center for help.

Professional approach

If you do not know the cause of the malfunction or cannot fix it yourself, then it is better to entrust your smartphone to specialists. If you live in Moscow or the region, then it is best to contact the Apple-Express smartphone repair service center.

There are real professionals working there who do their best short terms They will identify and fix the problem, and you will be able to use your favorite device again.

One of the main advantages service center - free diagnostics. Only original parts are used for repairs, and all work is guaranteed.

Based on materials from the website Apple-e.ru

Would you install an application on your phone to read articles from the epochtimes website?

I am sure that among the readers there will definitely be those who have encountered such a problem - the phone turned off at one point and will not turn on again. Or those whose mobile phone periodically turns off spontaneously. And for the lucky ones who have not encountered such troubles, it will be useful to know what to do in such cases.

Let's look at the possible causes of such malfunctions using the following situations as an example:

Situation No. 1

In the evening, when you came home, you put your phone on charge, and in the morning you removed the phone that wouldn’t turn on from the cable. You are in shock. You take the battery out of it, put it back in - nothing changes. There is no reaction to the charger. What is the reason?

1. Before you panic, check to see if your charger is burned out. To do this, take any other phone and make sure it is charging. If not, then you're in luck - just use a working charger. A similar problem may occur with the cable.

2. If everything is OK with charging, then it also gets upset early - the option of the so-called “deeply dead battery” remains.

What is it? Normally, the battery charge level ranges from 3.6 to 4.2 volts. Moreover, the manufacturer calibrates the device in such a way that a battery voltage of 3.6 volts corresponds to a 0% charge indication, and 4.2 volts, in turn, corresponds to 100%. When the phone is correctly calibrated, when the minimum battery charge is reached, the power controller will turn off the device, and when you press the power button, a full discharge indicator will be displayed. If you place the phone “all the way”, and then after full discharge Run the device several times, “distorting” the battery - the phone may discharge below the permissible minimum (3.6 volts). And a regular charger will no longer be able to charge it in this state.

At home, solving the problem of a “deeply dead battery” is problematic, but possible. To do this, take out the phone battery, connect the charger and, holding down the power button, insert the battery. If your phone screen lights up and starts charging, you're in luck. If not, you will have to seek help from a specialist who will charge the battery using a special power supply. Even the smallest workshop must have such equipment, and even the most inexperienced craftsmen are familiar with the “battery start” procedure.

3. Another reason for “not turning on” without responding to the charger may be a broken phone socket. In this case, the device starts after charging the battery, for example in a service, but after it is completely discharged it cannot be charged and turned on again. Breakdowns like this usually develop gradually. Most likely, the phone already had problems with charging, but they were successfully solved by a cunningly connected cable (upside down, pulled with a clothespin, etc.) But at one “wonderful” moment, all your know-how stops working and the charging socket simply breaks off fees.

Unfortunately, it is very difficult to solve this issue at home, and most likely you will have to contact the service. Here it is important to understand that if you have been torturing both yourself and your phone with all sorts of “devices” for a long time, then it is quite possible that the broken socket has already caused trouble on the board (for example, it tore off the elements adjacent to it). So you shouldn’t delay with such a breakdown.

And one more thing. If you have already returned your phone for service, be sure to request that the replacement part be returned to you after repair. Many “masters” are too lazy to change the charging socket and simply solder the old one. Which doesn't solve the problem at all. They only eliminate the consequence - the severed nest, but forget about the root cause - bad contact this same socket with the charger.

Situation No. 2

Your phone was fully charged, you were using it and it went out right before your eyes. The reasons may be the following:

1. The problem may be trivial dead battery. When using the phone, dust gets into the battery compartment. Small particles of this same dust fall asleep between the battery contacts and the contact block of the phone, creating a dielectric coating during friction. At one point, its quantity may reach its critical minimum and power simply stops flowing to your phone.

In this case, to turn on the phone, you need to remove and reinsert the battery. If it helps, take an eraser and carefully - so as not to damage the contacts - wipe the contact groups on the phone and on the battery. Using vodka, cologne or even medical alcohol for cleaning is strictly prohibited, because even pure medical alcohol contains 4% water.

If the manipulations carried out did not give the expected result, then it is worth checking how tightly the battery sits in the battery compartment. If there is play, press the battery with a piece of cardboard so that it is in tight contact with the terminal block.

2. What follows non-working button inclusion. Let's say you talked on the phone, ended the call, locked the screen with the power button, but couldn't unlock it. Visually, you see a phone that does not turn on, which does not react in any way to the power button. You juggle the battery, try to start it again - zero response. You make a control call to your previously disconnected phone and the call goes nowhere.

How to find out that your power button is broken and understand the reason for its malfunction? This problem is determined by placing the phone on charge. If the charging indication appears, but the phone still does not respond to your efforts to start it, it means that with a high degree of probability the button has died. The main causes of such breakdowns are mechanical damage, moisture, normal wear and tear and, of course, a manufacturing defect.

Unfortunately, fixing the power button at home is extremely difficult. Most likely you will have to resort to the help of specialists.

3. Proximity sensor. This sensor is triggered during a conversation when you put the phone to your ear, blocking the screen from accidental presses. If it breaks down after making a call, the screen goes dark and does not light up even after you remove the phone from your ear. The phone continues to think that you are talking on it. If you don't pay attention to the fact that the voice of your interlocutor is still coming from the speaker, it may seem that the phone is frozen or turned off. This kind of breakdown often occurs after unsuccessful repairs. touch screen in non-specialized service centers or after the phone has been dropped.

To make sure that this particular sensor has failed, just wait until they hang up on the “other end of the wire”. If after the end of the conversation the display lights up again, it means that your phone has been diagnosed.

Repair of the proximity sensor is possible only at a service center.

4. "Crashed software". Probably the most common breakdown of a phone. Well, if not the most common, then certainly the most favorite. Remember the notorious: “it’s buggy - you need to reflash it,” which, I’m sure, you yourself have used more than once.

Unfortunately, updating your phone's firmware is not a panacea. Especially if the device does not turn on. But when is it worth taking up reprovisioning?

if the smartphone freezes during use, and after “jerking” the battery does not respond to the power button
The phone does not boot beyond the splash screen
the phone reboots cyclically, reaching the same place during the startup process

In the event of a software failure, all these symptoms are permanent. If the phone sometimes starts, sometimes it doesn’t, you need to think about a serious hardware failure.

5.Phone hardware failure, provoked by the failure of electronic components. Of course, diagnosing such faults should be carried out under service conditions.

Situation No. 3

The most unpleasant cases are when you yourself caused the device to break down.

1. Phone drowned or flooded. In such a situation, immediate intervention by a qualified specialist is required. The only way you can be useful is to turn off the power to the device as quickly as possible, do not try to turn it on, much less charge it. Be aware that even a phone that is well dried at home runs the risk of becoming a “key fob” if power is given to it. I think not everyone has isopropyl alcohol at home, ultrasonic bath, soldering station and a binocular microscope, so leave such repairs to the professionals.

What measures can be taken if the phone drowns far from civilization, I will tell you in the next article - “What to do if I drowned my phone.”

2. You dropped the phone and it stopped turning on. This is due to mechanical damage soldering, rupture of surface tracks or, worse, an interlayer defect motherboard. Just like moisture, such breakdowns are considered complex and cannot be fixed at home.

Quite often you have to deal with the fact that the device does not work mobile communications, or rather, it does not turn on. This can happen for a number of reasons. In this article we will figure out why the phone does not turn on.

First of all, don't be upset because:

Firstly, such incidents happen quite often to many mobile phone owners, and, basically, the issue is always resolved.
Secondly, this happens with almost any phone. The answer to the question why it doesn’t turn on Nokia phone or LG, Samsung or Motorola, the same.
Thirdly, you need to understand that sometimes the owners themselves aggravate the situation by not understanding the reason why the phone may not turn on.

Let's look at possible reasons why a mobile phone may not turn on.

The battery is low

The phone may be dead. This can happen to anyone. They forgot to charge the phone in the evening, and by the morning the phone was dead. If after starting charging the phone still does not turn on, there is no need to lose hope. You should leave it to charge for 24 hours. If after this the phone does not turn on, you should look for the reason in something else.

Battery is faulty

Perhaps the battery has become unusable. To find out, you need to open back cover device and inspect the battery very carefully. If it turns out that there is swelling on it, then the problem lies in its unsuitability.

The charger has become unusable

The problem may be that the charger is faulty. This also happens quite often. If possible, check the charging operation on another device. If it turns out that it is working properly, then the reason needs to be looked for elsewhere.

Memory card lock

If the phone has an additional slot for a memory card and it is inserted there, this may also be the reason why the phone does not turn on. It is quite possible that the card is blocking the startup process of the mobile device. This can happen especially in cases where it is filled with information. If, after the card is removed from the slot, the phone still does not turn on, then the reason is different.

Mechanical damage

A very strong mechanical impact could occur on telephone handset, resulting in a breakdown. It is impossible to determine this from the external data of the case; it may be absolutely intact. Most likely, the internal mechanisms of the mobile communication device could have been damaged.

What most often leads to mechanical damage:

phone falling to the ground;
crushing in the pockets of tight jeans;
damage by small children or animals;
leaving the device on the roof of the car by the owner;
crushing in the bag.

In the event of such a breakdown, it is not recommended to open the phone yourself; you need to contact a specialist.

Moisture ingress

Moisture can get into your phone, not necessarily due to direct exposure to water. To do this, it is enough for it to simply lie in a damp room. You should not try to take any steps on your own; you need to go to a specialist.

Possible causes of moisture ingress:

falling into a bathtub of water;
falling into the toilet;
falling into snow;
use in the rain;
falling into a pond;
fogging of the phone caused by its owner performing heavy physical work;
leaving the phone outside during rainfall.

Other reasons

If your smartphone does not turn on, there may be a problem with the software. For example, a firmware update or rollback may be required.
The power button is broken. It is very difficult to understand this on your own. Such cases are quite rare, and they can occur as a result of a fall. cell phone from a great height.

We have considered almost all possible reasons why the phone does not turn on. It doesn't matter whether it's Samsung or any other model of the device. As a rule, the reasons for this phenomenon are the same.

Even modern gadgets are not completely insured against unexpected failure. It often happens that smartphones simply stop turning on; it’s worth taking a closer look at the causes of the breakdown and solutions.

Devices often stop working if battery life completely used up. But this problem occurs on mobile phones that were released quite a long time ago. Before this, the charge level may drop very quickly and charging takes too long.

One of possible reasons, why the phone does not turn on - started oxidation process at the battery. In this case, it is recommended to get rid of the battery as quickly as possible - there is a high risk that the battery will simply explode during further use. If the battery is swollen, it can be noticeable even through the case.

Hardware problems– the most common reason for phone failure. At home, troubleshooting can be challenging.

The phone does not turn on - what to do

Perhaps the device itself works, but for one reason or another freezes. The screen becomes dark and does not respond to any actions. The first solution is to restart using hardware keys.

Force restart iPhone

The following instructions will help owners of such models:

iPhone SE.
iPhone 6s.
iPhone 6s Plus.

Older models also allow a similar scheme. First, press the " Home» simultaneously with the top or side button. You must hold the buttons for ten seconds. Minimum - until logo will not appear manufacturing company.

If we are talking about iPhone models 7 and the same, but with the letters Plus - required to use side key along with volume down button. Hold until the Apple logo appears.

In the case of new models, it is first clamped increase key, and then - decrease volume. The buttons are pressed and immediately released. After this it is used side button. We just have to wait until the logo appears.

Forced reboot of Android smartphones

Android also requires pressing and holding the buttons for 10-15 seconds nutrition And decrease volume. If the operation was successful, the phone will reboot into automatic mode, or a menu will appear on the screen where one of available functions there will be a restart.

Some smartphones use other buttons in case of a forced reboot. If the method does not work, you should search on the Internet to find out which key combination is suitable if your Samsung, Lenovo, Asus, HTC, Micromax, Fly or any other phone does not turn on.

In case of battery problems

One of the reasons is that the battery is simply completely dead, so charging does not give any result; the phone often vibrates, but does not turn on. This situation is one of the most popular, but other types of circumstances also occur:

The charger is broken. Devices especially often fail if they are not original, but Chinese crafts. Then you can look for another charger suitable for your smartphone and try to use it. Alternative option– recharge via computer via USB.
Working resource used up devices. The battery often wears out in phones that are used for a long time. To check this fact use a multimeter. You should measure the voltage at the battery contacts. If it is insufficient even after a full charge, you should opt for purchasing a new battery.
A separate check is carried out for battery contacts on a smartphone. The phone often does not boot for a reason bad connection, dirt getting inside.
The charging socket is dirty. When charging modern phones open microUSB connectors are used. The contacts become clogged with layers of dust, causing charging to stop working correctly. Then it is better to disconnect the device and then clean the entire connector.
Broken power button– another reason why the phone does not respond to being turned on. In the case of new smartphones, this behavior most often means the presence of a defect. It is worth taking the model back to exchange for the same, but new one. Otherwise, just contact a technician who can competently replace the buttons.
Burnt out power controller- one of the worst options. This part is responsible for the charging process of the gadget. In this case, you just need to contact the service center.

If the phone does not turn on, the user can deal with most problems. The main thing is not to discharge the gadget to zero too often, only in this case the service life will be extended. It is recommended to use only certified charging devices from the manufacturer.

Problems with the memory card

Sometimes problems arise because of what is inserted SD-card not supported one or another phone model. Because of this, failures occur in program codes, the device cannot be turned on. In this case, you just need to remove the memory card that does not fit. If activation does not occur even after this, there is a high probability that the smartphone will have to be reflashed.

You should carefully study the specification that comes with the phone. It says how much memory cards are supported by the phone and what options are compatible. You can also get advice from salespeople in salons.

If the system is not updated correctly

Smartphones can turn into “bricks” even when the system has been updated, or the settings were reset, but the actions were performed incorrectly. Then normal method inclusion is no longer suitable. Resetting to factory settings is one of the possible solutions under similar circumstances. For this, the so-called Recovery mode is used. To enter it, follow these steps:

Pressing the key to increase the volume.
Pressing a key Home. The previous one is not released.
Pressed in parallel power button.

Some smartphones enter this mode if you press the button at the same time Inclusions, decrease and increase volume. Use the volume keys to move to the line called " Wipe data/ factory reset" After this, all you have to do is confirm your choice by clicking on “ Yes – delete all user data».

In addition, the user can clear sectionscashAnddata. But after this step, all personal data will be lost, so special care must be taken. It is better to contact the service center staff if there was something important on the phone.

If the boot freezes when the operating system logo is displayed, resetting to factory settings is also relevant. In this case, the problem lies in the fact that the hardware is not working correctly.

Some devices come with special button, which is used when rebooting - it is pressed using a thin needle. This also applies to iPhone models.

Action of viruses

Often your Android phone won't turn on because a virus has entered the system. Or several at once. Here you cannot do without flashing the device. Some service centers offer services to clean the device from viruses, which allows you to restore functionality. It is recommended to install antiviruses and programs only from official Play store Market to avoid such problems.

For mobile devices Programs like Dr.Web, ESET are great.

Broken screen

The phone may not turn on if the screen is broken, reasons similar malfunction there may be several:

display failure;
water entering the structure;
faulty cable.

You can try make a call to the device. If there is sound, but nothing happens, then the problem is definitely in the display.

The power button is damaged

Devices that have been in active use for a long time are more likely to experience this problem. The same applies to goods that were initially defective. There are two options for dealing with such situations:

Attempt to turn on. The smartphone turns on after two or three times. But the number of attempts may increase if failures have been noticeable before.
Send to repair center. The problem is not that serious and it won’t take much time to fix it. And the cost will be low, especially for devices under warranty.

Physical damage

Failure also occurs due to mechanical impact on the device. In this case, the case may remain completely intact, which makes it difficult to identify the problem externally. In this case, internal mechanisms suffer more often than others.

What leads to such breakdowns:

unnecessary bag pressure;
direct impact sun rays, if the phone is left in the sun in a car;
damage animals, small children;
strong squeezing in pockets;
telephone fell to the ground.

An independent autopsy in such situations is not advisable. It is recommended to contact specialists immediately.

The same applies to cases with moisture getting inside and other types of damage.

The phone does not turn on beyond the screensaver

Contacting service center specialists for diagnostics is the most reasonable solution if the phone does not turn on completely. Only with lungs software glitches you can handle it yourself by choosing one of the methods indicated above. If there is no result, then only the service center.

Phone charges but won't turn on

IN in this case The following reasons could have occurred:

Charging did not complete. Some devices, after being completely discharged, must be charged to a certain level, usually this happens within 10-20 minutes after connecting to the charger.
Using firmware. To reset the settings to factory settings, press the hot keys mentioned above. If it doesn’t help, contact the Service Center.
Hypothermia. The device often turns off if it is left for too long in a place where the temperatures are constantly below freezing. It's better to wait until the device warms up a little. And after that connect to the network.
Battery problems. Then one of the solutions described above is suitable.

Android won't turn on after factory reset

In this case, there are also several possible solutions:

contacting the workshop;
Android flashing;
leave the smartphone on charge for at least 3 hours;
pull out the SIM card along with the memory card and try to turn it on;
remove the battery for 20 minutes and press the power button so that the circuits are de-energized, then assemble the device and turn it on;
try to reboot.

Crashes in operating system – the most common reason that the phone refuses to turn on. You should not stop processes while they are running. Sometimes the issue is resolved by a deeper reset of the operating system.

How to turn on a touch phone without a power button

The easiest way is to connect to a charger and while the process is going on, all you have to do is hold down the button volume changes.

If the charge is not completely used up, it is permissible to connect the phone to a computer or laptop via the USB connector.

The third method involves installing the Android SDK package on your computer. This is a special tool that allows you to use personal computers for managing mobile devices. You will need to connect your smartphone via USB, and then register using command line adb reboot. If everything is correct, the device will reboot. But for this you will need to set certain settings.

There is a solution for phones that do not wake up from sleep mode - connection to charger the device will wake up the smartphone. Can shake the phone if such a function is available, or make a call.

Gravity Screen special application, allowing you to control smartphones without using the power button.

Most problems can be resolved by the user themselves. If not, you can always contact the staff of the nearest service center.

A modern telephone is a rather complex and sometimes capricious technical device, which may fail, for example, stop turning on, when the user least expects it.

Before you start panicking and looking for the nearest repair shop, it’s worth finding out why your phone won’t turn on. Very often, the owner of a gadget can fix mobile phone problems on his own, without turning to specialists.

Common causes of problems turning on a smartphone

The phone may stop working and turn on when its battery life is completely exhausted. As a rule, this problem is relevant for older models. It is possible to recognize it in advance: before the device finally stops turning on and responding to pressing any buttons, its battery begins to drain quickly, and charging takes a lot of time.

Possible problems with turning on also arise when the phone battery oxidizes. If this is really the cause of the breakdown, the most best solution– get rid of the mobile phone as quickly as possible (there is a possibility that the battery will catch fire). An oxidized and swollen battery is often noticeable from the outside, from under the phone’s body.

Often the phone cannot turn on due to hardware problems, which are not always easy to solve, and it is not a fact that the user can cope with this at home. The reasons given above require recycling the battery and replacing it with a new one. All other problems are subject to correction.

Mobile won't turn on

So, the main reasons for cell phone failure, due to which it may not turn on:

worn out or faulty battery;
charging problems;
faulty power button;
software errors;
moisture entering the device;
virus in the system;
various mechanical damages.

Faulty battery and checking it

If the device does not respond at all when pressing the power button, the first thing the user can do is check if the battery is working.

A cell phone battery usually has one of three problems:

insufficient charge level;
swelling, oxidation or other damage;
banal wear and tear.

For example, if the owner of a cell phone is wondering why the phone does not turn on completely, the answer may be simple: its battery is dead. Depending on the charge level, the device may either not respond to user actions at all, or do so weakly. The problem can be solved by connecting the phone to the charger.

Dead battery

You need to know that some cell phone models, after being completely discharged and then connected to charging, may not turn on instantly. In such a situation, you just need to leave them charging, and within one or two hours the functionality will be restored.

If charging does not help, you should open the back cover and see what condition the battery is in. A swollen battery must be disposed of immediately and replaced.

Swollen battery

Another common problem is battery wear, however, in this case the phone usually turns on, but then runs out very quickly. There are two possible verification options:

measuring voltage and current in the battery;
installing a battery in another similar device, if it works in it, the reason lies somewhere else.

Charging problems

If the phone is already connected to the network, but does not charge or turn on, it may not be the battery that is to blame, but the charger.

What to do to fix charging problems:

measure the voltage in the outlet;
change the device cable;
use another charger.

First of all, you should understand whether there is current in the outlet to which the charger is connected. This is a fairly common problem when charging mobile devices. The question of whether the user has verified that there is voltage in the outlet is the first question asked by the service center employees of any large company.

The cable may also be damaged. charger, for example, if it was used rather carelessly or if pets have access to it. This is an easily fixable problem, since almost all modern gadgets are charged via - or - connectors, and in this case the cable can be replaced separately from the adapter.

Damaged charger cable

Important! You can find out if charging is working by trying to charge your phone from a computer. If after this the device begins to charge and turn on, the problem is in the adapter that requires replacement.

Problems with the charging socket

This too common problem, especially for devices that are used for a long time. Sometimes it can be detected in advance, before the device finally stops turning on, for example, if it is set to charge, but the process does not proceed, or it does, but slowly and jerkily.

The reason may be a build-up of debris in the phone's charging socket. It is carefully removed from there using cotton pads and swabs (they should not be wet - this can lead to a short circuit and complete breakdown of the gadget).

Cleaning the charging port

Faulty power button

If the user finds that his mobile phone The power button may be broken. Typically, such a malfunction occurs on devices that are actively used for a long time (an exception may be a phone that was initially defective).

The user in this situation has two options:

Persistently trying to turn on the phone. Sometimes it works and after two or three tries it starts to function. The disadvantage of this method: if similar problem was before, gradually the number of attempts will increase
Take the phone to a service center. A broken power button is not a significant problem; it can be fixed quickly and inexpensively (especially when the device is still under warranty).

Power button repair

If you identify the described problems, do not delay visiting the service center. The fact that the power button does not work very well is also evidenced by the fact that it is not possible to turn on sleep mode on the phone immediately, but only after several attempts. If the button gets stuck or damaged, it is better to take the device to a specialist without waiting until it stops turning on and working properly.

Software glitches and problems after updating

Software failures can also cause the mobile phone to not turn on. The first thing to do is an emergency reboot, and this process can be done in one of two ways (depending on the phone model and its parameters):

Remove the battery. Easy method– you just need to remove the back cover of the cell phone, take out the battery, and then put it back in place. For phones with removable batteries, the process is almost identical. Any person can handle this.

Removing the battery

You should act differently if you remove the battery from specific model telephone is not provided. Under no circumstances should you disassemble the solid body of the device yourself - you still won’t be able to remove the battery, and the functionality will be impaired. For such cases, manufacturers leave a hole in the device body into which a small knitting needle or needle, usually included in the kit, is stuck.

Emergency reset hole

In the second situation, you should also carefully read the instructions that came with the smartphone - it should describe this process in detail.

Important! As a rule, the hole with which you can perform an emergency reboot of the phone is located either on the top or on the bottom side housings. It is also often covered with a removable plate.

Updates are released to fix problems with smartphones, but sometimes the consequences of their installation are unexpected. If the user wants to install updates himself, he must be aware of all possible risks. For example, phones running Android OS may begin to quickly consume battery power after a system update.

Android firmware update

Sometimes an update causes the device to stop turning on. Last time faced this en masse Android users in 2015, deciding to update the OS to the latest version.

How to solve problems with turning on the phone that arose after the update:

roll back updates or OS version;
install another version;
restore your phone using a special mode.

If it is impossible to use at least one of the above options, you must take the device to a service center.

A virus has entered the system

It is rare that a virus that has entered the system completely disables the phone, but it is also possible. There are samples that prevent the device from turning on, and in this case the user must understand the following: after restoration by resetting the settings, all personal data will be lost. It is impossible to avoid such a procedure, since without this it will not be possible to turn on the cell phone normally.

How to proceed:

Press the power button and volume button simultaneously. Depending on the specific phone model, it is determined which volume key should be pressed - upper or lower. Such information is usually displayed in the instructions.
Keep pressing the buttons until the phone starts to respond. The display will open Recovery menu. Here you select the “Wipe data/factory reset” item.