Please try your sim card on your mother's phone. If it works, then we know it's something with your phone. I'd still try to unlock the phone from the carrier, its supposed to be free, doesn't hurt to try. Worst cast scenario, format your phone and...
two problems i can think of.1. Public mobile sim card is faulty.2. the iphone you have isn't compatible.3. phone not unlocked Did you check your phone via compatiblity via the public mobile website?Other than that, it might be iphone, its not compa...
