The PwnageTool for Mac OS X have been released now and you could use to jailbreak your iPhone 3G on iOS 4.1 while preserving the baseband so that you could unlock iPhone 3G 4.1 iOS. The old version of Ultrasn0w, that is version 1.1-1 could be used to unlock iPhone 3G 4.1 iOS. Here are the steps to do it.
NOTE: You could now use the guide given here instead of this.
How to Unlock iPhone 3G iOS 4.1
1. Jailbreak iPhone 3GS on iOS 4.1 using the guide given here.
2. Launch Cydia.
3. Choose the Manage tab at the bottom.
4. Choose the Sources option.
5. Tap the Edit button and then on the Add button.
6. Then add the source http://repo666.ultrasn0w.com.

7. After the source is added, search for †ultrasn0w 1.1-1 †in Cydia.
8. Install the Ultrasn0w 1.1-1 app to unlock iPhone 3GS 4.1 firmware.

9. Restart your iPhone 3GS.
That’s it! Now you have an unlocked iPhone 3GS running iOS 4.1.?




9 Comments
I would like to unlock my Iphone 3G. I recently updated my Version to 4.1 and has a firmware 05.14.02
Please i really need help to get my phone back.
Thanks
Eli
Finally, we got the tools can unlock the iOS version 4.1, after jailbreak available.
me too (i_i)
I am in the same boat. if anyone knows, please help!!!!! Ashley
I am having 3g phone with 8 GB. My phone is jailbraked eith redsn0w. I would like to unlock my Iphone 3G. I recently updated my Version to 4.1 and has a firmware 05.14.02
Please i really need help to get my phone back.
Thanks
Ramakrishna.
shit i have iphone 3gs 4.1. baseband 05.14.02 and repo666.ultrasn0w no help me !!!!! what can i do ?
When will you be able to unlock my 3GS running 4.1, so i can call people again?
used this unlock on my 4.1 jailbroken iphone 3G, but my network keeps saying “searching” and then “no service” even after reboot or replugging simcard.
the unlock for 4.1 baseband 05.14.02 will not be available until the release of 4.2