Having seen several post about this on the Samsung boards. Happened to my wife's phone overnight. There is absolutely NO sound and any video accessed will only play on fast forward.
I have tried safe mode and done a factory reset. No change. There appears to be a bug in the latest update Verizon sent out, and since both Verizon and Samsung have the phones locked down, there is no way to revert back.
And before anyone asks, Quiet mode is off, the volume is turned all the way up. The phone worked just fine when we went to bed last night. Now it is not working.
A50 started crashing randomly, usually when taking pics. Possibly unrelated.
Did a system update and no sound audible. Videos play in fast forward. Video camera recording not working properly.
Sometimes it comes back when rebooting.
Backed up data and reinstalled software. Worked for one evening, but had same problem next morning.
KellyN96, ensuring you have a working phone is a must. Help is here. I appreciate the info you have provided thus far and for the troubleshooting steps you have completed. Let's work together to ensure we get this resolved. I have sent you a Private Message.