I know its old but still a good phone. My mom has a 16gb black 3gs. She might upgrade by the end of the year. If she does I will use that so I don't have to buy a new phone. My android micro usb port is loose and not charging very well unless I hold it in a certain direction. Micro usb sucks. So if I use the 3gs a few questions. 1. Being 3 years old battery is not what it used to be. So if the battery finally stops charging someday can I still use it. I mean I can replace the battery but that's expensive. But can I just use a usb cord for example in my card in one of those cigrette lighter to usb adapters. We currently use one right now and it works great. But if the battery is completely dead will that still make it turn on like if I have an accident or an emergency. Or the usb cable won't bypass the battery and make it turn on even if plugged in. 2. Does at&t allow the iphone to be used as prepay. I'm on 10 cents a minute. So I can just slip out my existing 3g sim card and slip it into the 3gs and keep my number. Or I need a new sim card and ipohne is not allowed on prepaid. At the store a lady said I can. But I thought I read somewhere its not allowed. Can't find the link. 3. Does ios6 work on 3gs. I read on some blog a guy got it to work. But does apple officially support 6 on 3gs or is 5 the highest I can go. 4. And if I decide to jailbreak it its easy too do. Or has anyone bricked their phone trying. And is it possible to reset the phone or unjail it if I decide later.