After messing around with my 3GS and the 4.0GM I was attempting to do the Jailbreak that’s mentioned on my site as well as others. After the restore process I always got an error 16XX but, after messing around a bit I found that if I restored to 3.1.2 Official firmware, then I used Pwnage Tool to 24kpwn then I was able to restore directly to my iOS 4.0GM Jailbroke firmware and no longer had the errors.

I hope this helps!

Apple has released a new version of iTunes, iTunes 9.1 which changes how certain things work. If you have upgraded to iTunes 9.1, several programs will start giving you an error that ASL.dll is missing.

This problem also occurs while trying to jailbreak your iPhone while using Blackra1n, when running the executable will give you an error saying that ASL.dll is missing as shown in the above screenshot.

The solution for this is simple, you will need to place the Blackra1n executables in the Apple folder under Common files in Program Files. The folder would be located in the following locations:

32 Bit – C:\Program Files\Common Files\Apple\Apple Application Support

64 Bit – C:\Program Files (x86)\Common Files\Apple\Apple Application Support

Once you copy the blackra1n executable to the above folder, create a shortcut for it on the desktop and double-click it to run it as usual.