Why the Android phone or iPhone does not turn on - how to fix the problem yourself. Android won't load beyond the logo

If your phone vibrates but won't turn on, it could indicate a number of problems, from a software glitch to a damaged system board. To fix the problem, you need to identify the cause using a diagnostic method - you can do this yourself.

Among all the reasons why vibration occurs, but an Android smartphone does not turn on, there are several of the most common:

• Breakdowns in the display module (including a broken loop).
• The need to update drivers or firmware.
• Battery malfunction.
• Flash memory problems (sometimes it is enough to remove the memory card).
• Short circuit on the board.
• Overheating of the battery.
• Water or drinks have spilled on the inside of the device.

If the smartphone reacts to charging, emitting vibration, but it does not boot, and therefore there is no way to check if the battery is charging, it is highly likely that the problem is in it. To make sure that the battery is faulty, it is recommended to remove the battery and put it on a universal frog charger. If after a few hours it is fully charged, then the reason must be looked for in the phone itself. There is a possibility that the power controller has burned out - only the soldering of the microcircuit by the master will help.

If the screen is dark and there is no label image on it, you need to check the functionality of the motherboard or run diagnostics using a PC and a micro USB cable. For this purpose, you can use the following programs:

• Phone Doctor Plus. Shows device temperature, memory status, touchscreen, multitouch.
• Aida64. Displays temperature data, display information, CPU load, battery status.
• Phone Tester. Diagnoses the condition of the sensors; battery capacity, temperature and performance; multi-touch operation.

Elimination methods

Factory reset

The most effective way to deal with the problem is to do a factory reset. It will not work to make it the usual way through the settings if the phone does not turn on, but you can go the other way:

1. We find the volume control, hold down the "+" while simultaneously pressing the ON button.
2. In the menu that opens, select wipe / data by moving using the volume up and down keys (up / down).
3. We confirm the action by clicking on "yes", then at the end select "Reboot System" to restart the system.

The operation takes no more than 5 minutes. Users should take into account that Hard Reset deletes all data, including photos and videos, so if possible, copy them to your computer beforehand.

There are other combinations for entering the "Recovery" mode with the simultaneous pressing of several keys, depending on the brand of the device:

• HTC, Nexus: power and volume down buttons.
• Sony: power + volume up.
• Motorola: both volume keys and power button.

Service Codes

You can roll back the settings to the factory settings using the service codes:

• *#*#7378423#*#*
• *#*#7780#*#
• *2767*3855#

Installing updates

If the problem is a software problem, you need to update your smartphone's firmware. This is done like this:

1. We connect the Internet connection (preferably Wi-Fi).
2. Open the settings, go down to the item "About phone" or "About device".
3. At the very beginning of the list there will be a menu "System update" - click on it.
4. We select "Check now". The gadget will automatically search for updates. If they are, they will be installed automatically, after which the system will notify the owner of this.

Flashing

Sometimes the owners of Android smartphones want to install a custom (unofficial) version of the firmware. In this case, special programs come to the rescue: for example, ROM Manager.

How to use it:

1. Load the desired firmware onto the Usb-Flash.
2. Launch the application and select "Install ROM from CD card".
3. We indicate the path to the archive where the firmware to be installed is located.
4. We click on "Reboot and install", then put a tick in front of "Save current ROM". This will allow you to roll back to the old software version in the future if you don't like the new one.
5. We agree to reboot. The device will then restart itself and install the updates.

Battery replacement

If the user decides to put his gadget on charge, and after a couple of hours he refuses to turn on, the problems should be looked for in the battery or power controller. In the first case, it is enough to buy a new battery, and in the second you will have to contact the service, since self-repair can aggravate the situation.

Conclusion

Some Android device owners face a problem when charging is in progress, but the phone does not turn on and makes vibrating sounds. Here it is necessary to carry out preliminary diagnostics to identify the causes, and then decide how to repair the device - independently or by contacting a qualified specialist.

Video

Samsung smartphone vibrates all the time

A smartphone is a modern, multifunctional means of communication. For every owner of a fashionable gadget, the reliability of the device remains an important criterion. But the device does not always justify the hopes placed on it, and there are cases when the Samsung smartphone vibrates all the time. Let's try to find out the reasons for such a malfunction.

• Mechanical damage;
• System crash;
• Optimization problem;
• Installing updates.
• Mechanical damage

A serious reason for this situation is mechanical damage to the device. During careless use, the gadget is exposed to various external influences. Such influences include: impacts, falling of the gadget, water ingress into the device, the influence of the temperature regime of the external and internal environment. Probably, these reasons are the problem of the device breakdown. You should immediately contact the Service Center.

System crash

Failure of software, in some cases, becomes a problem for a smartphone. As a result of an OS crash, what happens is that the Samsung smartphone vibrates all the time. Such a malfunction entails a lot of other more serious sad consequences for the device. It is better to repair this type of malfunction in the Service Center, since you may not be able to cope with self-flashing the OS.

Installing updates

Every user loves to update the installed fashionable gadget applications. But not every user knows that not all updates are compatible with the features of the gadget system. The performance of the device directly depends on the optimization and errors loaded in applications. Some of these updates cause significant damage and eventually the device starts to vibrate constantly. The wizards of the Service Center will help you deal with this issue.

The possible causes of the problem discussed above, when the Lenovo smartphone vibrates all the time, are possible, but not the only ones. To determine the exact cause of the malfunction, it is recommended to contact the Service Center engineer. The wizard will conduct a free diagnostics of the device and provide a guarantee for the work performed for up to 3 years. The courier will deliver the finished gadget free of charge to a pre-agreed place and time.

As Woland once said: "The trouble is not that man is mortal, but that he is suddenly mortal." The same can be said about our electronic friends - smartphones and tablets. Half an hour ago, he mysteriously flickered the screen and pumped bass in the headphones, and now it is black, cold and does not react in any way to your attempts to revive it: it does not turn on, does not charge. The same trouble can lie in wait when buying a used device. And the devices bought at promotional prices on sales can unpleasantly surprise the owner. Because of what the smartphone goes into a deep coma and how to get it out of this state is the topic of our short instructions for providing emergency care.

Why does not the device turn on

The problem of a device that does not show signs of life is perhaps the most common problem in the world of digital gadgets. As with most emergencies, a correct diagnosis is 99% successful.

Your smartphone or tablet may not turn on due to software problems, hardware failures, or battery problems. The reasons for which the device does not turn on are a carriage and a small cart.

Charger malfunction

Chargers are compact, operate in severe thermal conditions and therefore often fail. The most correct way to check is with a voltmeter to make sure that a constant voltage of 5 V is present at the output of the power supply. If this is not possible, you need to connect another working smartphone to this power supply and check if charging is in progress.

If the reason is faulty charging, then it must be replaced with a new one.

Damaged USB cable

Cables fail much more often than power supplies. The wire is kinked and the charging plug looses when plugging / unplugging multiple times. At some point, the electrical contact is broken, and the current no longer flows through the cable. No current - no charging. The cable is checked by connecting it to a known good power supply and a working smartphone.

Micro-USB plug - weak point of the charging cable

Deep discharge of the battery

The deep discharge problem is typical for devices that have been left without use / charging for a long time or were in warehouse storage. The reason is that even with a switched off smartphone, the battery is discharged due to self-discharge and current consumption by the duty circuits. The operating voltage of the lithium polymer battery is 3.6–3.7 V. If the battery voltage drops below 3.2 V, the smartphone charge controller will not be able to charge it due to the operation algorithm. To verify the deep discharge problem, you need to remove the battery from the device and connect it to a voltmeter.

Lithium polymer battery label indicates maximum operating voltage

Battery failure

The original battery is rated for approximately 500 charge / discharge cycles. During its life cycle, its capacity drops. At one point, the capacity of the battery becomes so small that it can no longer be charged. Such a malfunction is easily tracked, since the operating time of the device also drops with the battery capacity.

A separate item will consider the failure of the battery from overheating. Most often, unpackaged lithium-polymer batteries in tablets and some smartphones with a non-removable battery suffer from this. Due to the high temperature in a sealed battery, gassing begins, it swells. If it is not replaced in time, the consequences can be dire.

If the battery loses its tightness, it will catch fire or explode, in addition, growing in size from gases, the battery can damage the inside of the smartphone. Screens and sensors crushed from the inside are not uncommon.

In a neglected case of a swollen battery, the back cover of the phone protrudes or the screen cracks

Malfunction of the charge controller in a smartphone or tablet

Part of the smartphone's electronic circuitry is designed to charge the battery when a network device is connected. The charge controller monitors the residual capacity of the battery, charges it at a low level and stops charging when it reaches 100%. If you connect a non-original charger, cable with a short circuit or a surge in the mains voltage, the charge controller may be damaged. After that, the smartphone will not be able to charge the battery, although it will work fine from a charged battery or from a power supply.

Repairing a power controller on a tablet board is not a cheap pleasure. If your device is not young, it will be more expedient to power it through the Micro-USB port using an external battery (PowerBank), as repairs may exceed the cost of your pet on the secondary market.

Power controller repairs are expensive

Troubleshooting Power Problems

The mains charger and cable have been checked. Now we know for sure that the problem is in the device. Our first task is to try and charge the battery.

If the battery of the smartphone is removable, a charger, popularly called "Frog", will help us.

Universal charger "Frog" will help to charge the removable battery

Connect the battery to the "Frog" and charge for 2-3 hours. Then install it back to your smartphone. If the smartphone starts up, connect its native charger and control the charge. Doesn't charge - charge controller defective. Have fun walking with the device to the service center.

In the case of a deep discharge of the battery, the algorithm of actions will be somewhat more complicated. If you do not know how to hold a soldering iron in your hands, it is better to contact a service center or buy a new battery. Determined to do it yourself? Let's get started:

Video: how to charge the battery with the "Frog"

The device starts downloading but does not complete the download.

Your email friend turns on, displays a splash screen and even starts loading. Then it goes out and everything is repeated over again. This malfunction can have two causes: software and hardware.

There can be many reasons for a software failure: viruses, a damaged file system of the user partition, and thoughtless use of serious system utilities. The fix algorithm is simple - boot the smartphone into Recovery mode and reset to factory settings:

A hardware failure could be that the battery controller has blocked it for, say, 10-15% of its charge. When the smartphone boots up, it sees a low battery level and turns off. The recipe for treatment is the same as in the case of a deep discharge of the battery: we remove the battery, unsolder the controller from the "can", charge the bank with a charger to 3.7–4 V. But such a solution is palliative. The battery that has gone through a deep discharge has already irreversibly lost a fair amount of its capacity. The best solution is to buy a new battery, if possible.

Smartphone vibrates but won't turn on

If the smartphone vibrates, but does not boot, this indicates that the battery is discharged to 0%. From this state, the smartphone will not be able to charge the battery on its own. It needs to be removed and charged using the universal charger as described above. Check the condition of the battery when removing it. If there are signs of swelling or loss of tightness, be sure to replace it.

Even modern gadgets are not completely insured against unexpected breakdowns. It often happens that smartphones simply stop turning on, it is worth taking a closer look at the causes of breakdowns and solutions.

Devices often stop working if battery life completely used up. But such a problem occurs on mobile phones that have been released a long time ago. Before that, the charge level can drop very quickly, it takes too long to charge.

One of the possible reasons why the phone does not turn on is that it started oxidation process at the battery. In this case, it is recommended to get rid of the battery as soon as possible - there is a great risk that during further operation the battery will simply explode. 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 tricky.

The phone does not turn on - what to do

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

Force restart iPhone

The following instructions will help owners of such models:

1. iPhone SE.
2. iPhone 6s.
3. iPhone 6s Plus.

Older models also allow for a similar pattern. First, the key is clamped " Home»Simultaneously with the top or side button. You need to hold the buttons for ten seconds. The minimum is until the moment no logo appears manufacturing company.

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

In the case of new models, it is clamped first increase key, and then - decrease volume... The buttons are clamped and immediately released. Then the side button is used. It remains to wait for the moment when the logo appears.

Force restart smartphones on Android

Androids also require pressing and holding buttons for 10-15 seconds nutrition and decrease volume... If the operation is successful, the phone will reboot in automatic mode, or a menu will appear on the screen, where one of the available functions will be restart.

Some smartphones use different buttons in the event of a forced restart. If the method does not work, you should search the Web for what key combination is suitable if the Samsung, Lenovo, Asus, HTC, Mikromax, Fly or any other phone does not turn on.

In case of battery problem

One of the reasons is that the battery just completely sat down, because charging does not give any result, the phone often vibrates, but does not turn on. This situation is one of the most popular, but there are other types of circumstances:

1. 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 using it. An alternative option is to recharge via a computer from USB.
2. Work resource used up devices. The battery often wears out on phones that are used for a long time. To check this fact, use a multimeter. Measure the voltage at the battery contacts. If it is not enough even after a full charge, it is worth making a choice in favor of purchasing a new battery.
3. A separate check is carried out for contacts with battery on your smartphone. The phone often does not boot due to poor connection, dirt getting inside.
4. The charging socket is dirty... When charging modern phones, open microUSB connectors are used. The contacts become clogged with layers of dust, due to which the charging stops working correctly. Then it is better to disconnect the device, and then clean the entire connector.
5. Broken power button- another reason why the phone does not respond to switching on. In the case of new smartphones, this behavior most often means the presence of a marriage. It is worth taking the model back in order to change it to the same, but new one. Otherwise, only an appeal to the master who can make a competent replacement of the buttons.
6. Burnt out power controller Is one of the worst options. It is this detail that is responsible for the charging process of the gadget. In this case, you just need to contact the service center.

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

Memory card problems

Sometimes problems arise because of what is inserted SD-card not supported this or that phone model. Because of this, errors appear in the program codes, the device cannot be turned on. In this case, you just need to pull out the memory card that does not fit. If activation does not occur after that, it is highly likely 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, which options are compatible. You can also get advice from the sellers in the showrooms.

If the system is updated incorrectly

Smartphones can turn into "brick" even when the system has been updated, or a factory reset was performed, but the actions were performed incorrectly. Then the usual switching method is no longer suitable. Rolling back to factory settings is one possible solution under these circumstances. For this, the so-called Recovery mode is used. To enter it, the following actions are performed:

1. Pressing the key for increase the volume.
2. Holding down a key Home... The previous one is not released.
3. Parallel pressed 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 go to the line titled " Wipe data/ factory reset". After that, it remains to confirm the choice by clicking on the item " Yes – delete all user data».

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

If the download hangs when the operating system's brand name is displayed, a factory reset is also relevant. In this case, the problem lies in the fact that the hardware is not working properly.

Some devices are equipped with a special button that is used when rebooting - it is pressed with a thin needle. This also applies to iPhone models.

The action of viruses

Often the Android phone does not turn on due to the fact that 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 it to work. It is recommended to install antiviruses and programs only from the official Play Market store to avoid such problems.

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

Broken screen

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

• display failure;
• water ingress into the structure;
• faulty loop.

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

Power button damaged

Devices that have been in active operation for a long time are more often exposed to this problem. The same applies to goods that are initially defective. There are two options for such situations:

1. Attempt to turn on... The smartphone turns on after two to three times. But the number of attempts can increase if failures have been noticeable before.
2. Sending to repair center... The problem is not so serious, it will not take much time to fix it. And the cost will be low, especially for devices under warranty.

Physical damage

Breakage also occurs due to mechanical stress on the device. At the same time, the case can remain completely intact, which makes it difficult to externally determine the problem. Internal mechanisms in this case suffer more often than others.

What leads to such breakdowns:

• superfluous bag pressure;
• exposure to direct sunlight if the phone is left in the sun in a car;
• damage animals, small children;
• strong squeezing in pockets;
• telephone fell on the ground.

Autopsy is not desirable in such situations. It is recommended to immediately contact a specialist.

The same applies to cases with moisture ingress, other types of damage.

The phone does not turn on beyond the splash screen

Contacting the specialists of the service center for diagnostics is the most reasonable solution in case the phone does not turn on completely. Only mild software glitches can be dealt with on your own by choosing one of the methods indicated above. If there is no result, then only the service center.

The phone charges, but does not turn on

In this case, the following reasons could have occurred:

1. Charging failed completely... Some devices, after being fully discharged, must charge to a certain level, usually within 10-20 minutes after connecting to charging.
2. Using firmware... To reset the settings to the factory settings, the hot keys mentioned above are clamped. If it does not help, we contact the Service Center.
3. Hypothermia... The device often turns off if it stays for too long in a place where temperatures are constantly negative. It is better to wait until the device warms up a little. And then connect to the network.
4. Battery problems... Then one of the solutions that were described above is suitable.

Android won't turn on after factory reset

In this case, there are also several solutions:

• contacting the workshop;
• flashing Android;
• 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.

Operating system crashes- the most common reason that the phone refuses to turn on. It is not worth stopping processes while they are running. Sometimes the issue is resolved by a deeper reset for the operating system.

How to turn on a touchscreen phone without a power button

The easiest way is to connect to a charger and while the process is in progress, it remains to 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 on your computer. This is a special tool that allows you to use personal computers to manage mobile devices. You will need to connect your smartphone via USB, and then register using the command line adb reboot... If everything is correct, the device will reboot. But for this you 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 be woken up by a smartphone. Can shake the phone if there is a similar function, or make a call.

Gravity Screen is a special application that allows you to control smartphones without using the power button.

Most of the problems are corrected by the user himself. If not, then you can always contact the employees of the nearest service center.

e. What to do and how to treat?

Many users face the problem when phone or Android tablet starts to play up. It seems that he did not fall anywhere and did not "watered" with anything, but it does not work as it should.

For example, the device has problems receiving with "vibro"... This may be due to:

1st: Software glitch- i.e. the problem is a software failure

2nd: Hardware failure- i.e. the problem lies in the "hardware" (that is, it requires replacement or restoration of spare parts for the gadget)

However, do not rush to get upset - in 90% of cases with problems vibration motor operation smartphone or Android tablet is to blame software glitch, which you can easily fix on your own.

We fix the software glitch:

Method 1. Quite simple - go to "settings" find there "Backup and reset" where you choose full reset settings with deletion of all data. Be careful, the use of this method is often effective, but it entails the removal of all photos, contacts, passwords, music, games, videos and, in general, all information stored on your smartphone e or tablet e. Therefore, first save everything you need by connecting the gadget to your computer. If this method does not suit you, or if the problem persists after it, see Method 2.

Method 2.

Based on solving network communication and reception problems phone s and tablets based on Android by introducing additional software. Utilities that control all processes inside gadgets. Today, there are quite a few of them, however, the fewer functions an application contains, the more, as a rule, it is effective. Best of all controls system functions, corrects, and fixes all possible settings and synchronization errors is a small and easy-to-use free utility for Android devices. You can download the application from Google Play and see its additional options in the description. After installing the application, all that remains is to launch it. Further, from you, in principle, nothing else is required. The application will completely take over the control of the device's functions. (By the way, among other things, the gadget will start charging 20% ​​faster, and its performance will also significantly increase, which will affect the loading speed and operation of all applications, games, and the system as a whole. On average, after scanning, the system works on 50% faster.)

Method 3.

Change of device software, or, as it is also called "Per firmware ". This method, as a rule, requires certain skills and is solved by contacting the Service Center. To independently carry out this task, you need to contact the manufacturer's website for your device, download the utilities and the firmware itself necessary for the firmware, and then reinstall it on your gadget.

If none of the methods brought results, unfortunately, you will have to contact the Service Center for repair of your tablet a or smartphone a.

In a smartphone or tablet running Android, the vibration is gone and does not work. / Vibration in the phone does not work. What to do and how to treat?