safe mode

[Android Central Question]

At times it switches off on it's own and shows
Downloading a custom os may ne dangerous to your phone and installed apps
Volume up:to continue
Volume down:to cancel
But the volume button of the phone is not working due to the safe mode

 

[belodion]

Safe Mode is meant only as a diagnostic. If you’re in Safe Mode, and it affects the Volume bottom, there’s something seriously wrong, since it’s not designed to do that. In any event, exit Safe Mode.
There may be other things wrong, but without more details, we cannot diagnose.