iH8sn0w released Sn0wBreeze 2.9.4 with the support of untethered jailbreak of ios 5.1.1 few days ago.Sn0wBreeze 2.9.4 supports all idevices below A5 running on ios 5.1.1.The devices not supported are (A5 devices) that are iPad 3, iPhone 4S, iPad 2 along with Apple TV3 which yet not jailbreakable with any tool.
We should also note that Sn0wBreeze 2.9.4 doesn’t support the recently released 5.1.1/9B208 update for the iPhone 4 GSM.
If you are having iPad 3, iPad 2, or iPhone 4S than iH8sn0w announced that you stick with the Absinthe tool from the Chronic Dev Team.
Here are the full list of release notes for Sn0wBreeze 2.9.4:
iPhone 4 (GSM) & Apple’s 5.1.1/9B208 Update:
This evening, Apple appears to have (surprisingly) released 5.1.1/9B208 for the iPhone 4 (GSM) exclusively. Although there isn’t much of a difference it was enough to make the 9B206 untether payload for the iPhone 4 (GSM) invalidate on 9B208. Until pod2g/planetbeing build an untether payload for this build, 9B208 support is not included. A small update will be pushed whenever this occurs. This doesn’t mean the untether was patched though.
As stated many times in the past, sn0wbreeze cannot be updated to work on A5(X) devices until a low level exploit in DFU or iBoot is found and made public. Therefore, A5(X) users will have to rely on using the lovely absinthe.
A5(X) Baseband Preservation/Hacktivation?
For those running A5(X) devices and need to preserve your baseband, there is nothing you can do at the moment. For those wanting to hacktivate, the only advice I can give is to buy the carrier’s SIM (the one its locked to obviously) on ebay. The SIM does not have to be active with the carrier to activate the phone.