Today you’ll likely start seeing iTunes innocently offer you a new version of iOS…version 4.1. Don’t accept it…it’s a trap! You can JailBreak 4.1 but there is not a unlock for its baseband (Tmoble users) There are ways to upgrade with out updating the baseband using Pawnage tool . Others should be coming out soon.
This time of year there are lots of new iPhone owners, and not everybody knows that accepting new iOS updates is the surest way to lose your jailbreak and/or unlock. While those of you who have Cydia or TinyUmbrella backups of your FW hashes will always be able to get back to 4.0.1 if you make this mistake, this doesn’t hold for unlockers. There’s currently no known way to revert your baseband — if you update your baseband you’ll lose the ultrasn0w unlock, possible forever.
Please stay away from this 4.1 release until a safe jailbreak procedure (which also preserves ultrasn0w) is developed and released.
P.S. There are a tiny number of iPhone3G owners who can revert their basebands due to a flaw in very early bootloaders…you will already know if you fit in this category!
Paul put out a warning today that was advised from the Dev Team, to steer clear of the iOS 4.1 release, which is now currently being pushed live from Apple. That’s right, it is now LIVE, and you are strongly advised NOT to update.
Again, this is NOT a big update, however Game Center is an new feature we are all looking forward to it, at least for those with supporting devices, and of course included in the update is the long overdue proximity sensor fix. All in all, it’s not quite worth it to lose all the fancy goodies we currently get with out 4.0 jailbreak/unlock.
So, If your Jailbroken and require an unlock, again, Please stay away from this. But if you have no desire for either, feel free to update and post your comments below. Good Luck
If you haven’t already, backup your SHSH Blobs before it’s too late.