Hello, I am having an issue with my iPhone 3GS. For some reason, it does not seem to be picking up a signal. I've tried using multiple AT&T sim cards and multiple T-Mobile sim cards (the phone is unlocked) and for some reason, I cannot get service. The phone detects the sim card though because once I remove it, a message comes up saying that there is no sim card installed.
I've tried resetting the network settings and restoring the phone.
Thanks.
I've tried resetting the network settings and restoring the phone.
Thanks.