The phone is fine, it suddenly becomes a black screen, and you can t see anything?

Hello, phone black screen.

It is one of the faults that are often encountered in mobile phone maintenance, and usually the black screen can be divided into two types: one is the black screen in use, and the other is the standby black screen.

This can be solved by doing the following:

1. If the mobile phone operates an application software and causes a black screen error, you can uninstall it first to eliminate whether it is normal or not, and go to the regular app store.

Carry out**; 2. If the phone has a black screen of death when it is standby, you can press and hold the power button for more than 15 seconds to restart the phone, and click the left virtual button or the middle button at the bottom of the screen to clear the background program running on the phone; At the same time, it is recommended to develop a good habit of shutting down and cleaning up the system cache.

Note: If there is a breathing light function at the top of the mobile phone screen, you can plug the mobile phone into the charger, if the breathing light is on, it may be caused by the damage of the mobile phone screen or the hardware failure of the machine; If the mobile phone does not have a breathing light function, you can press and hold the power button for more than 15 seconds to determine whether the mobile phone vibrates.

3. After the above operations, it is still recommended to back up the data and try to restore the phone to factory settings.

4. If the above methods still cannot be handled, it is recommended to bring the purchase invoice and warranty card to send the mobile phone to the local service outlets for testing and processing by professional engineers.

It's whether the image head can be replaced if it's broken.

Troubleshooting method for the black screen of vivo mobile phone:

1. Force restart your phone.

Try force restarting your phone to see if it resumes, and check if the power and volume buttons are stuck in the case.

Force Restart Method:

Models released before September 2017 (models before x20): Press and hold"Power button"More than 12 seconds.

Models released after September 2017 and new models released later (x20 and later): Press and hold at the same time"Power button"+"Volume down key"More than 10 seconds.

NEX 3 NEX 3S: Press and hold the top round button for more than 10 seconds.

2. Upgrade the system version.

Please upgrade your phone to the latest version to view.

3. Reset all settings.

Go to Settings - System Administration - Backup & Reset - Restore all settings and follow the on-screen prompts.

Note: Restoring all settings will not delete any data or files, only all settings of the phone will be restored, some third-party application accounts need to be logged in again, please confirm that it does not affect the use of the software before operating.

4. Service center testing.

If the above methods cannot be solved, please back up the mobile phone data in advance, bring the mobile phone and purchase voucher to the vivo customer service center for testing, customer service center address: enter the vivo official website vivo**app--my-service outlets or vivo official website web version--scroll bottom--service support--service outlets query--select provinces and cities to query the customer service center address. It is recommended to contact ** in advance before going to avoid empty running, plan the itinerary reasonably, and travel safely.

Other black-screen scenes].

1. There is too much software running in the background, and the startup software has a black screen.

Multiple applications running in the background will occupy too much memory or other resources, and the phone may be overloaded and may cause abnormalities, so it is recommended"One-click acceleration"Clean up background apps.

2. The screen will go black when the set auto-lock time is reached.

Go to Settings - Display & Brightness - Auto Lock Screen to adjust the lock screen time to a longer time.

3. Double-click the screen to go black.

This is to turn on the double-click screen-off function, enter Settings - Quick and Assist - Intelligent Somatosensory - Smart Screen Off - Double-click to turn off the screen or Enter Settings - Intelligent Somatosensory - Smart Screen Off - Double-click to turn off the screen and turn off the function.

4. Use third-party software to have a black screen.

5. The screen is black during the call.

In order to avoid accidentally touching the screen, during a call, when the infrared sensor is blocked, the phone will automatically turn off the screen, and the screen will turn on when it is far away.

Maybe it's because the phone is too hot, and the automatic protection is turned off, so you can wait for it to cool down and restart it.

Mobile phones can be said to have become a must-have daily necessities for most of us, if there is a problem with the mobile phone at any moment, I believe many people will not be able to stand it, and the black screen of the mobile phone is one of the most common problems, so why does your mobile phone have a black screen? Is there a solution?

1. Press and hold the power button and the down volume button at the same time for more than 7 seconds, and try to turn the device on and off again.

2. Connect the charger to see if there is a charging display, if there is a charging prompt, you can charge it for a while and then turn it back on.

3. If you can operate the phone after restarting or charging, uninstall the third-party plug-in program that was operated before the black screen.

4. Back up your phone data (**book, short message, multi** file, etc.), and restore factory settings.

If the problem persists, please bring the purchase invoice, repair card and machine to the service center, and the engineer will check the machine and deal with it.

If you're still satisfied, give it a thumbs up

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.

Hello, it's a pleasure to serve you, 1. Crash. During the operation of the system, because of its own bugs or incompatibility with other apps, the underlying software of the system runs incorrectly, which interrupts the output of the display signal of the mobile phone processor, and finally causes a black screen. In this state, other users can still hear the call tone when dialing the mobile number, but the unit will not display the incoming call and there will be no response when connected to the charger.

Solution: Try to press the volume plus and power buttons at the same time for 10 seconds to force restart the phone, if the screen is displayed after pressing the key combination for 10 seconds, the fault will be solved. (The demonstrator in the picture above is:.)

OPPO Reno6Pro, system: coloros11) 2, the battery is virtual. After the mobile phone battery is severely aged, there will be a phenomenon of virtual electricity.

If you continue to operate the phone in this state, the battery voltage will be quickly lowered when the processor or other hardware is loaded, causing the battery to be unable to continue to work and cause it to restart with a black screen. This kind of problem is very easy to distinguish, when using the mobile phone can observe the battery level, if the battery is lost quickly, and after shutting down and restarting, it can be concluded that the battery is weak, just replace the battery can solve the problem. 3. The screen or backlight is damaged.

At present, the mobile phone screen can be divided into OLED and LCD, of which the LCD material display needs to be driven by a backlight, and if the LED backlight is damaged, it will cause the mobile phone to suddenly go black; Although the OLED screen does not need a backlight driver, if the screen is damaged due to external forces, it will also cause the phone to have a black screen. Solution: LCD screen can be solved by replacing the backlight, while OLED screen needs to replace the screen assembly.

Summary. Hello! We'd love to answer for you.

There are several reasons why the mobile phone becomes black for no reason: 1. When the mobile phone is flooded with water and dust, it may cause damage to the internal parts of the mobile phone, making the mobile phone automatically black screen; If the mobile phone is dropped, it may loosen the screen cable or short circuit the line, resulting in a black screen of the mobile phone; When the memory of the mobile phone is occupied by more than 80%, the mobile phone may have a black screen or freeze. 2. If the phone screen automatically goes black, you can try to turn it on and off again, connect the charger to see if there is a charging display, if there is a charging prompt, you can charge it for a while and turn it back on, or you can back up the phone data and restore the factory settings; If the problem still exists, please bring the purchase invoice, warranty card and machine to the service center, and the engineer will inspect the machine and deal with it.

3. The mobile phone is a portable terminal that can be used in a wide range, the full name is mobile**or wireless**, which was originally just a communication tool, and was commonly known as "big brother" in China in the early days. <>

<> what happens when your phone turns into a black screen for no reason.

Hello! We'd love to answer for you. There are a few reasons why your phone turns black for no reason:

1. When the mobile phone is flooded with water and dust, it may cause damage to the internal silver parts of the mobile phone, so that the mobile phone will automatically go black; If the mobile phone is dropped, it may loosen the screen cable or short circuit the line, resulting in a black screen of the mobile phone; When the memory of the mobile phone is occupied by more than 80%, the mobile phone may have a black screen or freeze. 2. If the phone screen automatically goes black, you can try to turn it on and off again, connect the charger to see if there is a charging display, if there is a charging prompt, you can recharge it for a while and turn it back on, you can also back up the data of the hand cracking dust banquet machine and restore the factory settings; If the problem still exists, please bring the purchase invoice, warranty card and machine to the service center, and the engineer will inspect the machine and deal with it. 3. The mobile phone is a portable terminal that can be used in a wide range, the full name is mobile**or wireless**, which was originally just a communication tool, and was commonly known as "big brother" in China in the early days.

<> kiss Could it be the reason for your screensaver settings? <>

<> you can take a look at the screensaver.

I don't know, I didn't do it before, the first time, I woke up like this.

Kiss You can check if it's the reason for the screensaver setting.

Otherwise, there is no problem, it may be that the screensaver is set to black.

The solution to the black screen of the phone:

Method 1: 1. Go to a darker place first, and then check if the brightness of the phone is turned off.

2. If the screen brightness is darkened, slide to adjust the brightness, or open "Settings", click "Display and Brightness", and turn on the automatic adjustment setting.

Method 2: 1. Open "Phone Manager", and select "Optimize Phone" and "Clean Phone Cache".

2. Click "One-click Optimization" on the open interface to optimize your phone.

3. Select "Clean Acceleration" and "Clean Phone Cache Files" to increase memory space.

Method 3: If there is a problem with the **** application, you can choose to uninstall and reinstall the fiber. If it is a problem with the mobile phone system, you can open the system and update the mobile phone system version to the latest version.

Method 4: If it still can't be solved, you can force restart the phone by pressing and holding the power button.

Method 5: If it still can't be solved, it is recommended to go to the repair point to test and repair the phone.

If the phone screen goes black very quickly, then you can extend the lock screen time.

Hello, the black screen of the mobile phone is one of the faults that are often encountered in the repair of mobile phones, usually the black screen can be divided into two types: one is the black screen after using the middle pulse, and the other is the black screen of standby. This can be solved by doing the following:

1. If the mobile phone operates an application software and causes a black screen error, you can uninstall it first to eliminate whether it is normal, and go to the regular app store for **; 2. If the phone has a black screen of death when it is standby, you can press and hold the power button for more than 15 seconds to restart the phone, and click the left virtual button or the middle button at the bottom of the screen to clear the background program running on the phone; At the same time, it is recommended to develop a good habit of shutting down and cleaning up the system cache. Note: If there is a breathing light function at the top of the mobile phone screen, you can plug the mobile phone into the charger, if the breathing light is lit, it may be caused by the damage of the mobile phone screen or the hardware failure of the machine; If the mobile phone does not have a breathing light function, you can press and hold the power button for more than 15 seconds to determine whether the mobile phone vibrates. 3. After the above operations, it is still recommended to back up the data and try to restore the phone to factory settings. 4. If the above methods still cannot be handled, it is recommended to bring the purchase invoice and warranty card to send the mobile phone to the local service outlets for testing and processing by professional engineers.