Finding your phone
You can check what firmware is installed on your iphone by going to
the emergency call, enter:
*3001#12345#* then press "Call". Under Versions you will find what revision firmware is on the phone.
NO TECHNICAL KNOWLEDGE REQUIRED!
Please watch video below to find your phone base band:
Please click on your phone below
03.12.06_G is firmware 1.0.0
03.14.08_G is firmware 1.0.1 and 1.02
04.01.13_G is firmware 1.1.1
04.02.04_G is firmware 1.1.1
04.02.13_G is firmware version 1.1.2
04.03.13_G is firmware version 1.1.3
04.04.05_G is firmware version 1.1.4