Vivo mobile phone has a black screen but a sound.

You can check the following troubleshooting methods:

1. Confirm whether the mobile phone is damaged by liquid or falling (if the screen is black at night or after falling, it is recommended to take the mobile phone and purchase certificate to the customer service center for handling);

2. Confirm whether the phone displays a black screen after double-clicking the screen;

① Origin OS/FunTouch OS 9.2/iQoUI and above: enter the phone settings-quick assistance-intelligent somatosensory-intelligent bright screen off-close and double-click to close the screen;

2 2 ②Funtouch OS 9.2 or below: You can enter the mobile phone settings-smart somatosensory-smart bright screen off-close and double-click to close the screen;

3. Forced restart of mobile phone recovery;

① ① models of funtouch OS 3.2 and subsequent systems: press and hold the "power button"+"volume reduction button" 10 second at the same time;

② Press and hold the top round key 10 second or more to forcibly restart the mobile phone (NEX 3/NEX 3S is applicable);

③ Model of the system before ③Funtouch OS 3.2: Press and hold the "power button" for more than 12 seconds;

Click the link to view the specific model forced restart operation method.

4. Confirm whether the screen will turn black after the set automatic screen locking time; Android 12 and above, when the screen is placed on the desktop face down, the screen will be turned off in advance to prevent accidental touch and save electricity;

5. Check whether the storage space is enough;

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

7. Check whether there are too many programs running in the background to cause 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 phone will automatically turn off the screen, and it will light up when it is far away;

9. Restore all settings after data backup;

Go to Settings-System Management/More Settings-Back up and reset/restore all the settings in the factory settings (restoring all the settings will not delete any data or media files, but only restore all the settings of the mobile phone, and some third-party application accounts need to be logged in again, so please ensure that the use of the software will not be affected before operation).

10. If the above methods are ineffective after operation, you can take the mobile phone and purchase certificate to the customer service center for testing and processing in time. Address of customer service center: Go to official website /vivo Mall APP-My-Service outlets or vivo official website webpage version-slide bottom-service support-service outlets query-select provinces and cities to query the address of customer service center. It is recommended to call in advance before going to avoid empty running, plan your trip reasonably and travel safely.