Update'ing jailbreaked iphone 4 5.1 to 5.1.1

bolo822 Posts: 1
edited August 2012 in Jailbreak Forum

I have big problem, I jailbreaked my iphone 4 5.1 ios with redsnow tethered jailbreak ( the one where you need to boot everytime ) and now I want to update my iphone to 5.1.1 and jailbreak it with untethered absinthe 2.0 BUT I don't know how to update my iphone, should I do it via iTunes? or I can't update my iphone via iTunes when I jailbreaked my iphone ??I don't wan't to break my iphone :( Please help me..

Thanks in advice.