What's wrong with Huawei p7 putting out the sound and entering the safe mode?

1. First, confirm whether the volume of all modes in Settings-Sound-Volume is adjusted to the maximum.

2. If the mobile phone is placed on the desktop, the sound hole of the speaker will be blocked, resulting in low ringtone and loud external sound.

3. Change some loud songs and test whether there is a sound source problem, such as "Huawei tune" in the ringtone.

4. If the above methods can't be solved, go to Huawei service outlets for testing.