help with iphone 3gs 4.3.1

[lafraga]

my iphone 3gs is in 4.3.1 firmware and 05.16.02 baseband and no shsh files saved my question is:

is there any way i can update the baseband to 06.15 so i be able to unlock with ultrasn0w?

 

[iGaz]

Yes. I belive redsnow still does it. Failing that you can use pwnage toll for mac or snowbreeze for windows to create a custom ipsw with the baseband that you want.

Remember updating your baseband does come with drawbacks...

http://blog.iphone-dev.org/post/1718400992/ultra-recycle