The iPhone Dev Team has just released PwnageTool 4.2, which will allow for iPhone unlockers to restore with a custom firmware to retain their existing baseband and unlock. They used the “feedface” untether from Greenpois0n, with permission from the Chronic Dev Team.
So if you own an iPhone 4, and want to retain your baseband but update to iOS 4.2.1, you want to use PwnageTool.
There are also two improvements to the iOS 4.2.1 jailbreak:
– fixes the iBooks issue
– fixes the wifi problem with Apple TV 2G
PwnageTool also supports all the other 4.2.1 devices other than iPod touch 2G:
iPod touch 3G
iPod touch 4G
An Untethered Jailbreak for iOS 4.3 is Around the Corner
With iOS 4.3 around the corner, it looks like there is hope for an untethered jailbreak:
It also appears that a security researcher named @i0n1c has a 4.3 untether ready for when Apple releases the final 4.3 FW, so it may not be a long wait at all with 4.3!
PwnageTool is for Mac only. Download here. Let me know how it works for you!