Why does the phone have a black screen, why does the phone have a black screen

There are several aspects of the black screen of the mobile phone, and the black screen is mostly caused by its own third-party software, and this situation rarely occurs with the machine. It can also be subdivided into two kinds: one is that there is a problem with the software itself, the software itself is unstable, or it does not match the mobile phone system, etc., this is easy to solve, just uninstall it; The second is the conflict between the software and the software, which is a little more troublesome to solve, and requires a software to install and uninstall the software in the experiment.

If you find it, uninstall it, and the problem will basically be solved. Of course, it is recommended that you do not install too much useless chicken rib software. Although buying a smartphone is to play the machine.

But some software that you don't use at all is a waste. As for the black screen in standby, let's talk about the standby principle first, because most of the straight board machines have a power-saving circuit design: the mobile phone will automatically turn off the screen if it can't detect the key trigger signal for a long time, that is, standby, when you need to use the mobile phone, a button will activate the power-saving circuit, and then the screen lights up!

The reason for the black screen is often reflected by the delay of the screen triggering circuit. That is to say, the mobile phone system has issued a command to light up the screen, but because the circuit is delayed, it is not sent successfully, and the screen is not lit successfully, but the mobile phone system thinks it has been lit, so it causes a black screen. You can give it a try.

The phone screen is black, don't be in a hurry to restore it first. Use a friend's mobile phone to call your own **, if you can get through, you can also answer normally. That's basically the problem.

There is no need to panic when a black screen appears, and there is no need to pick the battery immediately. You can leave the phone for about 3 minutes without pressing any keys on the phone, and then press the button again to activate the screen. After many years of practice.

It can generally be returned to normal immediately! In this way, it basically does not have a big impact on the use.

Have you seen something you shouldn't have seen!

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 your phone (recommended if your phone freezes or gets stuck).

FunTouch OS and later models: Press and hold the "Power button" and "Volume Down button" at the same time for more than 10 seconds;

Press and hold the top round button for more than 10 seconds to force restart the phone (applicable to NEX 3 NEX 3S);

FunTouch OS previous models: Press and hold the "Power Button" for more than 12 seconds.

2. Upgrade the system version (skip this step if the screen is completely black and cannot be restored).

Please upgrade your phone to the latest version to view. Searching in the mountains.

3. Reset all settings (skip this step if the screen is completely black and the display cannot be restored).

Note: This action will not delete the software or files, only reset all the settings; For data security, you can back up important data before operation.

4. Service center testing.

If the problem cannot be solved by the method on the liquid calendar, please back up your mobile phone data in advance, and bring your mobile phone and purchase voucher to the vivo customer service center for testing. This link can be accessed: Web Link.

[Other black screen scenes].

1. There are too many software running in the background, and the soft software is black.

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.

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

If the normal screen off has no effect, the abnormal screen off means that there is some problem with the phone.

1. There are many reasons for the black screen of a smartphone, and you can start by using some small methods to distinguish whether the mobile phone is a hardware problem or a system problem.

2. Connect the phone with the charger data cable first, press the power button, if the screen does not flicker, you can rule out the situation that the phone is out of power.

3. If the phone starts, and the screen flashes and then the black screen appears, it means that there is a problem with the phone system, you can try to press and hold the phone power button and volume key to double clear.

4. Restart the phone after the phone is double-cleared, if it is useful, the phone will be turned on, if the phone is still black, the system should be reinstalled, and the brush should be brushed to a professional mobile phone repair office.

5. If there is no movement on the mobile phone screen by pressing and holding the power button, it may be a hardware problem with the mobile phone, or a problem with the software of the mobile phone.

6. If the problem of black screen on the mobile phone is not caused by violent impact, most of it is caused by improper operation, usually we should pay attention not to install malware when using the mobile phone, clean up the memory space of the mobile phone in time and carry out anti-virus.

You can view the troubleshooting method for the black screen:

1. Confirm whether the mobile phone has liquid ingress or damage (if it is a black screen caused by night or damage, it is recommended that the user send it for repair and after-sales treatment, if not, exclude it below);

2. After confirming whether it is a double-click screen, the phone screen will appear black;

OriginOS FunTouch OS and above: Go to mobile phone settings -- Quick & Assist -- Intelligent somatosensory -- Smart screen off -- Turn off the screen with double click;

FunTouch OS is as follows: You can enter the phone settings - intelligent somatosensory - intelligent screen on and off - turn off the screen with double click;

3. Force restart the phone to recover;

FunTouch OS and later models: Press and hold the "Power button" + "Volume Down button" at the same time for more than 10 seconds;

Press and hold the top round button for more than 10 seconds to force restart the phone (applicable to NEX 3 NEX 3S);

FunTouch OS previous models: Press and hold the "Power Button" for more than 12 seconds.

Click the link to view the operation method of force restart for specific models.

4. Confirm whether the set automatic lock screen time is reached and the screen will go black; Android 12 and above, when the screen is placed on the desktop with the screen facing down, the screen will be turned off in advance to prevent accidental touches and save power;

5. Check whether the storage space is sufficient;

6. Whether it is the latest system, not the latest system needs to be upgraded;

7. Check whether there are too many programs running in the background causing a black screen;

8. Whether the screen is black during the call, in order to avoid touching the screen by mistake, during the call, when the infrared sensor is blocked, the mobile phone will automatically turn off the screen, and the screen will turn on after moving away;

9. Reset all settings;

Go to Settings - System Management More Settings - Backup & Reset Restore all settings in factory reset (restoring all settings will not delete any data or ** files, only restore all settings of the phone, some third-party application accounts need to be re-logged in, please confirm that it does not affect the use of the software before operating).

10. If the above methods fail to solve your problem, please back up your mobile phone data in advance, and bring your mobile phone and purchase voucher to vivo customer service center for testing.

Poor contact of the phone battery.

The phone is out of battery. The phone freezes.