[Saied]

Every time i try to unlock my iPhone using winpwn, i get the error "firmware error string" and i cannot proceed. Does anyone know how to resolve this problem. If so then please comment. Thanx in advance.

[hiflyer]

You need to Restore your phone to apple 2.2 firmware with itunes and then use Quickpwn 2.2 to jailbreak/unlock.

A guide by the BigBoss:

QuickPwn Guide | iPhone News, Help and Guides

[qnc]

Use quickpwn for what ever firmware you are on. I have never been able to get winpwn to work, but quickpwn works everytime for me.

[usedphone]

question?
what is the purpose of quickpwn if it can not activate the phone.
i have at&t sim and it's showing no service after restoring with itune and quickpwn 2.2

[qnc]

Quickpwn should activate, unlock and jailbreak the phone as well as install cydia. If it did not work you may need to try it again.

The only thing it does not do is allow you to use a custom firmware.

[usedphone]

somewhere on this forum that ppl kept saying it doesnt

but you are right
quickpwn does everything...jailbreak, activate, unlocked.
i did it and everything working great!

[L30IPHONE]

hey i am tired of firmware error string but i have new 2.2.1 so how

[qnc]

I have not upgraded to 2.2.1 yet but try here and follow the tree and you will get you solution. Just follow the directions.

iClarified - iPhone - How to Select an iPhone Unlock/Jailbreak Tutorial
Hope it helps