I have a galaxy 7s with Att I need to know how to install the software

[AC Question]

The software upgraded to has caused lots of problems with my battery and Internet my internet has gone way up even when I've I've only text or answered my phone my battery stats drained. I never had any issues until I upgraded my software

 

[chanchan05]

Backup your important data using Samsung Smart Switch for PC, then on the phone settings, use factory data reset.