Current location - Health Road Network - Complete square dance - Huawei mobile phone Why does the square dance need to log in to the mobile phone number qq number?
Huawei mobile phone Why does the square dance need to log in to the mobile phone number qq number?
Enter * # * # 3646633 # * * in the standby interface to enter the engineering mode and switch to the hardware test.
Click on the audio below.
Just raise the value below the level a little, and restart the phone after adjustment.