How to solve GTA5 mobile phone without sound?

There is nothing wrong with the mobile phone, which means there is nothing wrong with the receiver. There are three reasons for incoming calls, short messages, videos and no sound:

1, the volume is not turned on, so it is estimated that this is not the reason for the landlord;

2, the speaker is broken, it is recommended to change the speaker;

There is something wrong with the mobile phone system, either audio or driver. Suggest looking for after-sales service.