Can I Unlock my Old Bootrom 3GS on 4.2.1 with 05.15.04 BB?

[Alvi]

I have an Old Bootrom 3GS on 4.2.1, I have the SHSH since iOS4.0 the baseband is 05.15.04
If i can't how can I downgrade to an unlockable version? I don't want to loose my GPS with the iPad Baseband

 

[noiceT]

I have an Old Bootrom 3GS on 4.2.1, I have the SHSH since iOS4.0 the baseband is 05.15.04
If i can't how can I downgrade to an unlockable version? I don't want to loose my GPS with the iPad Baseband

You can't unlock unless you move to the ipad baseband.

Unlocking is based on baseband, not firmware. Jailbreaking is based on firmware.

You're only choice is ipad BB for now.

 

[Applejuiced]

You can't unlock at the moment without installing the iPad bb and you cannot downgrade your bb.

 

[Alvi]

But isn't my baseband good to unlock? I think I had it unlocked with 4.1 and 05.15.04

 

[Applejuiced]

But isn't my baseband good to unlock? I think I had it unlocked with 4.1 and 05.15.04

No, your bb cannot be unlocked.
That version is not capable. Only 4.0.2 and below.

 

[noiceT]

But isn't my baseband good to unlock? I think I had it unlocked with 4.1 and 05.15.04

This might help clear things up:

http://jailbreakmatrix.com/iPhone-iTouch-Jailbreak

 

[Tampaite]

This might help clear things up:

http://jailbreakmatrix.com/iPhone-iTouch-Jailbreak

Thanks this helps a lot!

 

[jackryan57]

This might help clear things up:

http://jailbreakmatrix.com/iPhone-iTouch-Jailbreak

Nice!!! Thanks!!!