Unlock and jailbreak iphone 4 from 4.1 to 5.0

[kevinngai]

Hi all,

I have a unlocked and jailbroken ios4.1 with baseband 01.59.00. I want to upgrade, jailbreak, unlock with ios 5. So I want to know how to do it. Do we need the tinyunbrealla to keep the baseband? Do we need to upgrade to different firmware version before upgrading to ios5? Any helps will appreciated.

Kevin

[iYeow]

You have to create a custom firmware of IOS 5 from Redsn0w 0.9.9b7 for Mac, not sure if Snowbreeze 2.8b8 can create one and restore to it, don't use TU for verification. Let Apple server verify your restore.