Iphone Os 3.1.2

Recover / Reset 3GS iPhone OS 3.1.2 for Mac OS 3.0 … have to downgrade the baseband?

I am using a 16G iPhone 3GS running on Mac OS 3.1.2 with baseband 05.11.07, if I was completely recover / restore the 3.0 will be the band be disqualified / changed to 04.26.08? please help!

nah he does not will be or even put in

iPhone / iPod Touch OS 3.1.2 Released

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