My friend has an iPhone 3G on 3.1.x with 05.12.01 bb. I am going to upgrade it to 4.2.1 and jb it. Any way to save the bb? Is the 05.12.01 bb unlockable? I don't have access to a windows machine by the way.
Yes, Use pwnage tool to create a custom ipsw in order to preserve the unlockable baseband.
Use only PwnageTool!Can I have a link please? What would I use to unlock it? Ultrasn0w?
Use only PwnageTool!
Dev Team
Instructions on www.iClarified.com
Yes, you would use ultrasn0w; I recommend you go up to 4.3.1 and unlock it.
Thank you for the links. I would put it on 4.3.1 if 4.3.1 supported 3G's.
Thank you for the links. I would put it on 4.3.1 if 4.3.1 supported 3G's.
Latest firmware for 3G is 4.2.1.