My Huawei media pad has no sound. how can I fix it?

battery failing

https://www.manualslib.com/manual/375615/Huawei-Mediapad.html?page=25

This video should help you.

Okay, they just released the new Google flagship phone called the Nexus 6p and if it is like the phone, the power button is on the back side.

On most phones, while you are on(or making) a call, you can adjust the sound up/down using volume buttons.
If you required specific sound settings for your phone, try this link: Huawei Ascend 200 User Manual Setting Ringers

Did you run out of service days? Because, if you don't pay your bill to your phone by the "Due Date", it will shut off your services, including messaging, phone calls, but not emergency calls. But, if you did pay your bill, then I don't know why it would be doing this, other than your in airplane mode.

sim card signal

This mic has a 10db pad or attenuator switch near the bottom of the barrel... make sure you haven't accidentally engaged it.

If that's not.... it try changing the lead. Also the power supply on your preamp could be failing.
These are a few cheap things to try before spending money for fixing.

it seems when you dropped the phone some stuff shifted in the mobile if you can pull the phone and just screw it back up it should be ok, if not i recommend contact a technician for his assistance

need a puk code as my phone is locked an i called testra yesterday and they said there systems are down and to call todaY WELL I DID AND THERE NOT EVEN OPENED. i cant wait till monday i need to use my phone now help plz'''