1.0.2 unlocked update to 1.1.2 but the phone didn't recognise ATT sim !!
I've used 1.0.2 unlocked iphone with other carrier in Thailand, but now that i'm back to the US, i restored and updated firmware to 1.1.2 but the phone didn't recognize my ATT activated SIM!! The IEMI still original one. What's wrong with it? Please help.
In addition, there's been a problem with the sceen dead spot, (about 1 cm. at the top of the screen) that it won't respond any action, when i was using 1.0.2.
I'm afraid that if i go to apple store and they will notice that this phone's modified.
My firmware version is 04.02.13_G