Okay, well my uncles friend had an old iPhone 4 he didn't need anymore, so he gave it to my uncle, who gave it to me. But, I'm trying to reset it, but the original owners iCloud data and iTunes account and stuff is on there. So I can't turn off iCloud and reset it so now i'm kinda just stuck with some other guys phone. (Which doesn't have a sim card in it, mind that). So instead of waiting to go to the AT&T store, is there anything else I can do in the meantime to just wipe the whole thing?
Usually I don't ask online when it comes to this stuff, but I'm just not sure right now. So, any help would be greatly appreciated, thanks in advance! <3
Added (1). Also, no, we can't contact the original owner because my uncle moved, and does not have any type of connection with him anymore, whatsoever.