The phone suddenly has a black screen and can t be opened, how to get it

Try to press and hold the power button first, if there is no response, to confirm whether the battery of the phone is too low, it is recommended to charge for 30 minutes before trying to turn on.

Reasons and solutions for the phone to suddenly turn on the black screen:

1. The mobile phone battery is dead, and then turn it on after charging for 5-10 minutes.

2. If there is a conflict between the software in the mobile phone and the system, delete the software.

3. There are too many programs running in the phone, which causes the phone to crash and restart the phone.

Fourth, the mobile phone is poisoned or hit by a Trojan horse, and the mobile phone is disinfected after restarting.

5. After the above operations, if the machine cannot be turned on normally, go to the after-sales service for maintenance.

Reasons for the black screen of the phone:

1.Under normal circumstances, when the mobile phone stores too many things, many friends can feel that the mobile phone is running too slowly, and when their mobile phone is occupied by 80% of the memory that can be driven, it may crash.

2.This is the loosening of the contact of the mobile phone screen, which is not a big problem, but it can directly cause the black screen of the mobile phone, and it is difficult to find that it has to go through a lot of tests to find, which is generally caused by the mobile phone being bumped.

3.It is common for many mobile phones to have a black screen after using it for a long time, the main reason is that the effective use time of the mobile phone battery is 1 year, or it is three years but there is a problem in one year, and excessive use leads to the aging of the mobile phone's battery and insufficient voltage.

4.There are a lot of applications for smartphones nowadays, but there are some software that are inherently conflicting, which can also lead to a black screen, so the black screen after installing a lot of software is basically this reason.

5.Many people are keen to flash the machine and use a better system, in fact, some system mobile phones are not very supportive, and some are not complete, resulting in a black screen when using it in the future.

Summary. There can be many reasons: a system crash. The flashing failed, and the phone battery ran out.

It can be detected by:

1.First, self-detect your phone. Nowadays, most brand mobile phones have a deep sleep mode, once you enter this mode, it will often cause the phone to have a black screen and cannot be turned on.

The solution is very simple, press the power button of the phone for more than ten seconds to see if you can force restart. Or press and hold the volume up button and the power off button at the same time, and feel the phone vibrate and force restart.

Generally speaking, this step can solve the problem of black screen on most mobile phones.

2.Second, the battery is dead or malfunctioning.

Solving this problem is as simple as connecting the charger for a while and then trying to turn it on. You can also directly buckle the battery and charge it with a universal charger to see if the connector of the battery is loose.

If it can be turned on after charging, it means that the battery is just dead.

If it still doesn't work, you can try a different battery. Check if the battery is faulty and no longer has power.

3.In addition, a violent fall on the mobile phone may also cause the mobile phone to go black. This situation is more troublesome, and it is likely that the hardware of the mobile phone is out.

What should I do if the phone suddenly has a black screen and can't be turned on?

There can be many reasons: a system crash. The flashing failed, and the phone battery ran out.

It can be detected by the following methods:1First, self-detect your phone.

Nowadays, most brand mobile phones have a deep sleep mode, once you enter this mode, it will often cause the phone to have a black screen and cannot be turned on. The solution is very simple, press the power button of the phone for more than ten seconds to see if you can force restart. Or press and hold the volume up button and the power off button at the same time, and feel the phone vibrate and force restart.

Generally speaking, this step can solve the problem of black screen on most mobile phones. 2.Second, the battery is dead or malfunctioning.

Solving this problem is as simple as connecting the charger for a while and then trying to turn it on. You can also directly buckle the battery and charge it with a universal charger to see if the connector of the battery is loose. If it can be turned on after charging, it means that the battery is just dead.

If it still doesn't work, you can try a different battery. Check if the battery is faulty and no longer has power. 3.

In addition, a violent fall on the mobile phone may also cause the mobile phone to go black. This situation is more troublesome, and it is likely that the hardware of the mobile phone is out.

3.In addition, a violent fall on the mobile phone may also cause the mobile phone to go black. This is a troublesome situation, and it is likely that the hardware of the phone is malfunctioning, so it will have to be repaired.

4.There are also software conflicts, which will also cause the phone to turn on the black screen. For example, some friends inadvertently install two different battery management software when they are in the first software, which will cause the mobile phone to shut down automatically.

If so, the solution is also very simple, you need to format your phone. 5.As a last resort, if the above methods do not work, then you can only find an after-sales solution or repair shop.

The external power supply is insufficient, causing some old displays or some displays with high power consumption to fail to start normally, which is one of the causes of the black screen failure caused by the failure of the display itself. Or the external power supply voltage is unstable, too high or too low may cause the display to not work.

Take it to a repair shop for repair, if it is not for human reasons (what is a human reason: the mobile phone has a black screen in the water, and the screen is broken and the black screen is broken, and the charger is often not pulled), you will not be charged.

Then you have a broken phone, then you take it to the place where the phone is repaired to see if it can be repaired, and if you can't repair it, buy a new one.

Is there no electricity, try charging now, if not, go to the after-sales service to see.

What can I do, just press and hold it for a while.

Under normal circumstances, when pressing the power button, the trigger terminal voltage of the power button should change significantly, if there is no change, it is generally due to poor contact of the power button or the power line is broken, the component is soldered, and damaged. When repairing, use an external power supply to supply power, observe the change of the ammeter, if the ammeter does not respond, it is generally a disconnection of the power line or a bad power button.

2. The screen cannot be opened due to poor battery power supply circuit.

For most mobile phones, after the mobile phone is added to the battery or external power supply, the power supply voltage is directly added to the power supply worker C, if the power supply voltage is not added to the power supply IC, the mobile phone cannot be turned on. For Motorola series mobile phones (except Motorola T2688), the power supply is different, and the battery power supply and external power supply must be converted by electronic switch and then added to the power supply IC.

3. The mobile phone cannot be turned on due to the low battery power of the mobile phone.

It is most common for the mobile phone to not turn on due to the low battery of the mobile phone, and many netizens use the mobile phone to a serious insufficiency, resulting in the automatic shutdown of the mobile phone. The reason is that the smartphone can only be turned on when the power is greater than 5%, for example, when the battery is too low, it will not be able to open when this requirement is not reached, what we can do is to wait for the phone to charge for more than 5 minutes and then try again.

1.It may be that the phone is out of battery, at this time we need to charge the phone, and we will try to charge the phone when it is charged.

2.If you still can't turn on the phone when charging, it may also be that the screen of the phone is out of response, at this time we can press and hold the power off button.

3.If the black screen is caused by water entering the mobile phone, at this time we can't try various boot operations, we must first put the surface of the mobile phone.

4.If the phone turns into a black screen after falling, at this time it is better for us to go to the after-sales service to test it.

5.If the mobile phone that has been used for many years often has a black screen, it may also be caused by the aging of the mobile phone battery, which is mainly because of the mobile phone.

Problems caused by low system versions can be solved by upgrading the system; If the cache data is too large or caused by viruses, you need to clean the cache and check for viruses. The black screen caused by the aging battery needs to be replaced with a new battery; For the black screen caused by poor contact of the internal motherboard components of the mobile phone, it is recommended to find a professional maintenance personnel to deal with it.

This situation is relatively common, and generally rebooting is fine. If it really doesn't work, you can only go to the place where the phone is repaired or the after-sales repair office to take a look.

In fact, sometimes most of the problems are of the poor contact type, or individual components, well, there are some problems that will only go wrong.

Android phone black screen won't start solution:

1.The phone cannot be turned on when the battery is too discharged.

Sometimes the mobile phone can't be turned on when you sleep at night, and I believe most people have encountered it. The author has encountered it myself. In fact, this is caused by the excessive discharge of the mobile phone. In layman's terms, the mobile phone battery is out of power at all, resulting in the inability to turn on.

Resolution. Over-discharging of the phone battery can cause the phone battery to freeze dead. It takes half an hour to an hour to activate. If this is the case with your phone. Let's honestly charge for half an hour.

Please click Enter a description.

Because the phone entered recovery mode by mistake, the phone could not be restarted or exited. What should I do in this case?

Please click Enter a description.

Resolution. If it is caused by misoperation to enter recovery mode, you can try to press and hold the power button for ten seconds to restart the phone. If the problem still exists, it may be that the volume key circuit is abnormal, and it is recommended to bring the purchase invoice and warranty card to the customer service center for testing and processing.

3.The boot card cannot be turned on on the interface.

If the smartphone is stuck in the boot animation interface during use, it is recommended to try to press and hold the power button for 12 seconds to force it to shut down, and then restart the phone; If your problem cannot be solved, please bring the purchase invoice, warranty card and mobile phone to the nearest customer service center for testing and processing.

Resolution. If the phone can be turned on normally after restarting, it is recommended to optimize the phone as follows:

1. Uninstall the recently installed software to eliminate the incompatibility between the software and the system;

2. If the system is unstable due to system abnormality or root, flash the system as soon as possible to repair the system;

3. If the battery is caused by power loss, it is recommended not to completely deplete the power, and charge it in time if it is less than 20%.

4.The mobile phone is powered on and prompts "Enter RF test".

Generally, if the mobile phone prompts to enter the RF test mode, it is most likely that there is a foreign object in the headphone jack or a short circuit in the circuit board.

Resolution. There is really no solution to this Go to the after-sales service center with peace of mind.

The vivo smartphone suddenly has a black screen and cannot be opened, which can be dealt with according to the following methods:

1. Long pressPower buttonFor the full screen, you need to press and hold the "Power Button" and "Volume Down Button" at the same time30 secondsTry restarting your phone.

Second, place the phoneConnect to the chargerTry it again.

3. Place the phoneClear dataTry it.

Procedure (take vivo x9s as an example):

1. Press and hold the phone at the same time when the phone is offPower button"And".Volume + key"Enter recovery mode.

2. Select Clear Data.

Notes:After the phone clears the data, it will delete all user data (such as text messages, ** numbers, notes, etc.) in the system space of the phone. Steps:

1. Select "System Repair Mode".

2. Select "Enter System Repair Mode", it is recommended to connect the charger to operate.

4. Select an available WiFi connection.

Note: This method is suitable for:X6 series and subsequent models.

If you try the above methods and still can't turn on,It is recommended to bring your mobile phone to the after-sales service center for processing.

Official after-sales service center inquiry method:Enter the official website of vivo - service network query - select the province and city to query.

Procedure (take the computer as an example):

1. Enter ** in the browser: enter the vivo official website.

2. Slide the mouse and select the service network to query.

3. Select the province or city where you are located (e.g., Guangzhou, Guangdong).

Notes:Before going to the after-sales service, dial ** to confirm the after-sales working hours and plan the itinerary reasonably.