Is it possible now to update from ios 5.1.1 to 6.1.2 with tinyumbrella saved shsh , p

[mdimovic]

Is it possible now to update from ios 5.1.1 to 6.1.2 with tinyumbrella saved shsh , preserving modem baseband? and how?

 

[willerz2]

If you're on the iPhone 3GS/4, yes. If you're on the 4S, no. If you have valid SHSH blobs as well as APTickets, the easiest way to do it is to use RedSn0w.