iOS 4.0.1: Update For iPhone Jailbreakers And Unlockers From Dev Team

Jailbreak iOS 4 on iPhone 3GS

Apple has just released iOS 4.0.1 (8A306) for the iPhone 4, iPhone 3GS and iPhone 3G to fix the incorrect display of signal strength

So what should iPhone jailbreakers and unlockers do?

Firstly, iPhone Dev Team has warned users who want to jailbreak and unlock their iPhone to avoid iOS 4.0.1 until further notice.

Update: 

JailbreakMe 2.0 Released To Jailbreak iPhone 4, iPhone 3GS, iPhone 3G On iOS 4, iOS 4.0.1 And iPad On iOS 3.2.1, iOS 3.2 Using Mobile Safari

MuscleNerd of the iPhone Dev Team has advised users who want to jailbreak and unlock their iPhone to avoid upgrading to iOS 4.0.1:

Obviously avoid today's 4.0.1 update until JB tools are updated.

However, the good news is that the baseband hasn’t changed in iOS 4.0.1 so Ultrasn0w 0.93 that should be able to software unlock your iPhone (once it is jailbroken).

iPhone Dev team had released Ultrasn0w 0.93, their software solution to unlock all basebands since iPhone OS 3.0 including baseband 05.13.04 that comes bundled with iOS 4.

MuscleNerd has also confirmed that Ultrasn0w will work:

Luckily, no baseband change so ultrasn0w lives on 🙂

Dev Team is also advising iPhone 4, iPhone 3GS and iPod Touch 3rd generation users to take a backup of iOS 4.0 SHSH blobs (ECID files). You can checkout our step-by-step guide on how to take a backup of SHSH blobs:

Luckily, iPhone 3G users and iPod Touch 2nd generation (non-MC version) can use Redsn0w (v0.9.5b5-5) to jailbreak iOS 4.0.1. If you need help, you can checkout our step-by-step guide on how to jailbreaking iOS 4.0.1 using Redsn0w:

As always, we’ll let you know as soon as we’ve any further updates. So stay tuned here at iPhone Hacks or follow us on Twitter or subscribe to our RSS feed.

Update: 

JailbreakMe 2.0 Released To Jailbreak iPhone 4, iPhone 3GS, iPhone 3G On iOS 4, iOS 4.0.1 And iPad On iOS 3.2.1, iOS 3.2 Using Mobile Safari

[via MuscleNerd, iPhone Dev]