Quick Question

[gbernier]

Hi, i have a iPhone 3gs 4.1 new bootrom, unlocked with the ipad BB 06.15.00. Has there been way to upgrade to the newest firmware while preserving this unlockable baseband? I heard you wouldnt be able to even restore it cause of this baseband?

 

[gbernier]

does no one have an answer?

 

[Massie]

Definitely can be done. Look here:
Dev-Team Blog

 

[iRandom]

If you have a Mac, I can recommend using PwnageTool. If not, checkout TinyUmbrella