Secret IPHONE Codes :
*3001#12345#* and tap Call. Enter Field Mode.
Field mode reveals many of the inner settings of your iPhone, specifically
up-to-date network and cell information.
*#06# Displays your IMEI. No need to tap Call.IMEI is the unique identifier
for your cell phone hardware.
Together with your SIM information it identifies you to the provider network.
*777# and tap Call. Account balance for prepaid iPhone.
*225# and tap Call. Bill Balance. (Postpaid only)
*646# and tap Call. Check
