[AC Question]

How do i format my samsung s6 edge. Because it get hang and going in mute for 30 mnt twice a day.

[anon(632115)]

Try clearing system cache first. It may well do the trick

[B. Diddy]

Welcome to Android Central! I agree with Pugs1957--here are the steps: https://support.t-mobile.com/docs/DOC-21095

If that doesn't work, you can do a factory reset by going to Settings>Backup & Reset. There's also an option in the Recovery Menu (where you did the cache wipe) for Wipe Data/Factory Reset, which will do the same thing.