For all those who are interested to update their iPhone firmware to 3.1, they are requested to wait until Dave-Team releases a Redsn0w and Ultrasn0w which can actually unlock firmware 3.1. If you will upgrade to firmware 3.1 now then you will lose your Ultrasnow unlock forever. You wont be able to recover your baseband firmware. Up-till now feel free to unlock iPhone OS 3.0.1 Firmware which is compatible with Redsnow.
Some Words By Dev-Team:
This week Apple will be all over the news with their announcements at Wednesday’s “Let’s Rock” event. But with so many new owners of the iPhone 3GS, and with so many new owners of the iPhone 3G (perhaps sold to them by these new 3GS owners)…now is a good time to send out this general advisory.
If you update to Apple’s new software using the normal iTunes process, you will lose your ultrasn0w unlock. In fact you may lose it permanently, because for most people the baseband firmware cannot be reverted to a previous version (unlike the main application CPU firmware).
But don’t worry…our PwnageTool program — when it’s updated for 3.1 — will let you update your main firmware without touching your baseband firmware, so you can still have the best of both worlds. But you must be diligent about saying “no” to your iTunes request this week to update your firmware.
Update: We’re currently working on PwnageTool for 3.1, and will be sure to let you know when it’s available!
We will update this page with complete procedure to unlock iPhone OS 3.1 Firmware as soon as Dev-Team releases a PwnageTool for OS 3.1 Firmware. So stay tuned :PContact Us for News Tips, Corrections and Feedback