What if Huawei enjoys 9 Plus and suddenly the black screen crashes?

If your mobile phone has a black screen during use, please press and hold the power button 10 for more than 0 seconds (emui11.0&; HarmonyOS System Edition needs to hold down the volume down button and the power button at the same time (10 seconds or more) to restart the phone forcibly.

1. Confirm whether the screen is blank under the following conditions:

Black screen when talking on mobile phone. In order to increase the battery life of the mobile phone, if the distance sensor is blocked during the call, the mobile phone will automatically close the screen and reopen the screen after being far away.

The mobile phone reaches the set sleep time. When the phone reaches the set sleep time, it will automatically close the screen and manually open the screen when re-entering.

2. Confirm whether there is any abnormality when using the mobile phone during charging:

This situation will lead to overheating of the mobile phone, resulting in abnormality. I suggest you try to avoid playing with your mobile phone while charging.

3. Check the storage space of the mobile phone:

Please check the remaining storage space of your phone. If the storage space is less than 10%, the system performance will drop sharply. It is recommended that you try to ensure storage space, and it is recommended to reserve 20% space.

View mode: enter the phone settings, search for storage, and view the available space and remaining space. If the remaining space is relatively small, it is recommended to open the mobile phone housekeeper, choose cleaning acceleration, and clean up some unused files or applications.

4. Confirm whether to run incompatible applications:

Running multiple applications in the background will take up too much memory or other resources, and the overload of the mobile phone may be abnormal. It is recommended that you try to avoid multiple applications running at the same time.

Some third-party applications are incompatible with the system, which may cause the phone to crash and the system to get stuck, leading to a black screen or restart. I suggest you enter the application market to download the latest version of the application and update your mobile phone system to the latest version. Please back up important data (third-party applications such as WeChat and QQ need to be backed up separately).

If the system keeps reporting errors and can't boot normally, you can enter the safe mode, then enter the phone settings, search and enter the application management, and uninstall the previously installed software.

5. Check the system version:

I suggest you check whether the version of the mobile phone system is the latest version, go to Settings, search for software updates, and then click Check for updates. If not, I suggest you upgrade your system to the latest version. Please back up important data (third-party applications such as WeChat and QQ need to be backed up separately).

6. Confirm whether the system files have been deleted by mistake:

When the system is running, the corresponding file can't be found, which leads to confusion and mobile phone failure. Try to restore the mobile phone system version through Huawei Mobile Assistant or eRecovery.

7. Confirm whether the microSD card is installed:

Please check whether the problem still exists after plugging and unplugging the microSD card again. If the problem does not exist, it may be a poor contact. If the problem still exists, it may be that the microSD itself is damaged or incompatible with the mobile phone system. It is recommended to replace the high-quality microSD card.

8. Still can't solve it?

If the problem still exists, please back up important data (third-party applications such as WeChat and QQ need to be backed up separately) and bring the purchase voucher to Huawei Customer Service Center for testing and processing.