Recently dropped my phone, and a friend sent me an old 8GB 3G (model A1241, AT&T I think) from the States (to Canada). I put my Rogers SIM card in, and iTunes says it "does not appear to be supported." Pressing home just brings up the IMEI/ICCID screen. So what exactly do I do with this? I'd like to jailbreak, but I don't know what firmware is currently on the phone (my friend no longer remembers).