(oops...meant buyer says it's not working...can't figure out how to edit the title) I would love to have some direction to point this guy. I sold my used 2G phone on ebay...it was working perfectly up till I purchased my new phone and came home and cleared the info on the 2g one. This morning, I get this message from the buyer: hi , I received the Phone , and tried to get started using it ,I connected the phone to my iTunes and was able 2 get to the main menu screen but when I inserted my AT&T sim card the phone didn't recognize it although that sim card is working just fine with my other 2 iPhones..it looks like there's a problem with the phone so please tell me how can we solve this problem? thanks. Any advice? Words of wisdom? I replied, asking if his sim was from a 3g, not being sure if the sims were backwards compatible, and suggested that connectivity issues would best be handled thru AT&T, although I'm guessing that's not what he's looking for.