Possible to upgrade?

[turkish6]

Hey everyone,

I currently have an ultrasnow unlocked iPhone 4 with firmware 1.59.00 and running 5.0.1. Is it possible to upgrade to 5.1.1 and still keep my firmware and staying unlocked? If so how would I go about doing this. Thanks

 

[Jmills87]

Yes, you can create a custom firmware with Redsn0w(factory firmware without baseband update) or with Sn0wbreeze(prejailbroken firmware without baseband update). Restoring a custom firmware from either of those tools will preserve your baseband.