Jailbreak iOS 5 Beta 1 using sn0wbreeze v2.8b2 Untethered

Untethered jailbreak for iOS 5 beta 1 is available for iPhone 3Gs (old bootrom only) device by using sn0wbreeze-v2.8b2. iH8sn0w released sn0wbreeze v2.8 beta 2 yesterday to support untethered jailbreak for iOS 5 beta 1.

Remember: Untethered jailbreak iOS 5 beta 1 is available for iPhone 3GS with old bootrom only, otherwise the jailbreak is still tethered and needs iBooty for iOS 5 to boot your tethered device.
How-to know if iPhone 3Gs has old bootrom or new bootrom?
Check the iPhone production week. If it’s greater than 40, then you most likely have new bootrom and if it’s less than 40, you have the old bootrom and eligible for untethered ios 5 jailbreak. However, production week between 40 and 45 is mixed up between old and new bootrom you got a chance to have old bootrom version.

Requirements for iOS 5 untethered jailbreak on iPhone 3GS:

– iPhone 3GS old bootrom version.
– IPSW file for iOS 5 beta 1
– sn0wbreeze-v2.8b2

Step by step to jailbreak iOS 5 beta 1 is the same steps as usual when you jailbreak using sn0wbreeze.
Select IPSW file, wait until custom firmware finished built, enter PWNED dfu mode, then restore the custom firmware which built by sn0wbreeze.
For complete instruction please click here: Untethered Jailbreak using sn0wbreeze.

The steps are the exactly the same, except you have to select iOS 5 IPSW file instead iOS 4.3.3

If you have any problem while jailbreaking iOS 5 Beta 1 using sn0wbreeze v2.8b2, post your problem here.