Unroot but remain s-off, safe?
Question, sold my 3vo to a buddy who lives out of town, is not a techy type guy, and adb are just letters in the alphabet to him. He wants to go back to stock, can i talk him thru the PCIMG part and leave the bootloader s-off'd for him? He doesnt need to return the device and ill s-on for him next time he's in town. Is it safe to unroot and stay with s-off? Will he still have 4G and the such?