Huawei G9 is too low. Is there any way to turn it up?

The voice of the mobile phone is low, so you can follow the following steps:

Please enter the "Settings" interface and click "Sound >"; Volume ",check whether the volume of all modes has been turned up.

Please check whether the speaker is covered.

Please change the music to confirm whether there is a sound source problem.

After the above operations, the problem still exists. Please back up your mobile phone data and take the purchase invoice to the after-sales service point for repair.