Updating unlocked iphone 3g
You can find out the i Phone unlocking process an unlocking company will usually take here.
NOTE: Ensure that you select the NO_BB firmware, and not the stock firmware, or else you will update your device baseband.At the time of writing the latest version of i OS with an available untethered jailbreak and unlock is 5.1.1 (using ultrasn0w 1.2.7) providing you are on one of the following baseband Supported versions i Phone 4: i Phone 3G(S): , , , , *Once ultrasn0w 1.2.8 is released, a jailbreak and unlock will be available on i OS 6.x on the same basebands listed above. Redsn0w is available from the i Phone Dev Blog Ultrasn0w is available on Cydia by adding to the list of sources.* Baseband is an i Pad baseband, and disables the GPS receiver.If you have already updated to to unlock, there is a baseband downgrade available using redsn0w (0.9.15b1).Alternatively, you can use a third party unlocking service provider, these guys will help you to unlock your phone for a small fee.
Simply select your network from the dropdown list below and you will see a list of providers, times and prices for unlocking the i Phone 3G.If you’re not comfortable unlocking your i Phone 3G yourself, there are a couple of other options open to you, firstly, you can ask your current network provider to help you unlock your i Phone.