If you get stuck or can't start the phone, please press and hold the power button to try to restart the phone forcibly. If it can be restarted normally, please back up the important data of the mobile phone after booting.

If your mobile phone frequently appears abnormal during the boot process, it may be that the mobile phone system is abnormal. It is recommended that you back up your data and restore your mobile phone to factory settings.

You can do this in the following ways:

Press and hold the Volume Up button+Power button to check whether you can enter the recovery mode. If yes, please select "Restore Factory Settings" for formatting and repair.

Repair through Huawei Mobile Assistant or restore the version of mobile phone system through eRecovery.

If you have restored the factory settings and the phenomenon still exists, I suggest you go to Huawei's after-sales service center to check whether the hardware is abnormal.