Why is there no sound in Samsung s7?

Samsung S7 has no sound for the following reasons:

In the mobile phone settings, the option to turn off all sound functions is turned on; Set the volume of the mobile phone to the minimum; The speaker is blocked; There is something wrong with the mobile phone hardware. Solutions to the above problems:

Enter the phone settings, select hearing in the auxiliary function, and turn off all sound options. Adjust the volume key to maximize the sound; Check whether the speaker is blocked by mobile phone film or dust; Back up the mobile phone data, bring the purchase invoice, maintenance card and machine to the Samsung service center, and the professional after-sales engineer will help with the inspection.