| have you looked at you sim tray, as I had the same problem unlocking the s4 mini. unlock went well and imei after reboot was intact. but still no network, and saying insert sim when a sim was already in phone.
found after a close up of the sim tray that two of the pins were bent downwards, and after bending them back into there correct position the phone read all sim cards fine. heard its a common fault with the lastest samsung phones as the pins in the sim reader are flimsy.
just a thought if your having this sort of problem........!! |