I have a Samsung Galaxy S3 i-747 from Rogers and it has been sim unlocked and works perfectly fine but I'm using it on a prepaid carrier and whenever I punch in the code to recharge my service such as *120# it gives me an error message that USSD Code not recognized and it just closes.
The phone is running Android 4.1.2 and nothing has been done to it other than unlocking and rooting.
The phone is running Android 4.1.2 and nothing has been done to it other than unlocking and rooting.