Help back to stock rom?


Well-Known Member
hey guy's i have an s4 from rogers but recently work switch to telus so we unlocked my phone for telus..there was an update and it mest up my wi-fi so i put cayanogen mod 11 stable version.i would like to go back to factory since new update fixed this issue..

but what stock rom do i put?

telus or since the phone is rogers need to go back to rogers and unlock again?