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iPhone Secrets

          iPhone Secrets
*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 minutes. (Postpaid only)These three are pretty self explanatory.

*#21# and tap Call. Setting interrogation for call forwards.Discover the

GSM Codes

GSM Codes
The following codes are the standard GSM codes for various network services. Most Nokia phones have easier ways to activate them through the menus. Check the guides for your model.

Call Diverting

All
To Activate: * * 21 * NUMBER # [SEND]
To Cancel: # # 21 # [SEND]
To Check: * # 21 # [SEND]
No Answer
To Activate: * *