Here is a great news. iPhone Dev Team key member MuscleNerd has announced that they are working on iPhone 4S unlock. According to the developer a “very promising unlock is in works”. He has also made it clear that its an unlock for iPhone 4S and not for iPhone 4.
This is what he has announced on his Twitter account:
Ultrasn0w is a software based unlock solution for iPhone device. CURRENTLY it can unlock iPhone 4 on baseband 01.59.00 and iPhone 3GS on 04.26.08 / 05.11.07 / 05.12.01 / 05.13.04 / 06.15.00.
On the other hand, if you have iPhone 4 with basebands 02.10.04 / 03.10.01 / 04.10.01 and iPhone 3GS with 05.14.02 / 05.15.04 / 05.15.04 / 05.16.01 / 05.16.02, Ultrasn0w CANNOT unlock your device and you have to use GEVEY SIM CARD.
If you check, all the above mentioned basebands are of iPhone 4 and iPhone 3GS. It means iPhone 4S basebands are still unlocked. Remember on these latest basebands that comes with the iPhone 4S, you cannot even use gevey sim.
It is to be noted that software based unlock always require an untethered jailbreak first. So first we have to wait for the untethered iOS 5 jailbreak. You can only install Ultrasn0w package if you have Cydia installed in it. So wait for the untethered 5 Jb first.
No estimated time of arrival has been told by the developer. Apparently it will take some time to complete their work first before showing any intentions of actually releasing the iPhone 4S unlock.
Stay tuned to VeryRite.com. We will let you know as soon as we get another update on this. Make sure you follow us.