Unlock iPhone w/baseband 02.30.03 using custom.ipsw

I have a question..since the custom.ipsw saves your current settings so that your current baseband does not get updated, would it be possible to downgrade the firmware to 2.2 and use the same method of upgrading to 2.2.1 using the pawnage tool but using someone elses custom.ipsw file? Just an idea. I would like to try it if anyone has thier custom file that I could test this out with...I would appreciate it...unless this is definately not possible.

Mark

I think I posted this the wrong category..I will post elseware.

Mark

It is impossible.

Wont work, this is discussed a zillion times, pls use the search function.
Thred closed