Today on 10.30AM PST Apple released the 3.1.3 version (7E18) of the iPhoneOS. This is a warning for all those like myself that cherish their jailbroken/unlocked iPhone. DO NOT update!

Basically this update in this update fixes the consistency of launching some third-party apps, the iPhone 3GS battery level being more accurate, and repairs a bug that caused some apps to crash while using the Japanese Kana keyboard.
Honestly this doesn’t seem to be major updates to be losing your jailbreaking/unlocking needs.


Unlock iPhone 3.1.2 Tutorial…
[...]several tutorials and guides to unlock the iPhone with firmware 3.1.2. However, there are a few issues[...]…
Unlock iPhone 3.1.3 Tutorial…
[...]several tutorials and guides to unlock the iPhone with firmware 3.1.3. However, there are a few issues[...]…