The many new feature options within the new RedSn0w download jailbreak tool includes the likes of DFU mode that allows automatic determination of which device and FW you have.Other features include: “Pwned DFU” puts your device in a pwned DFU state for some of the iTunes stuff, “SHSH blobs”, “Select IPSW” is for picking non-public IPSWs, or overriding auto-detection, “Fetch” – fetch current PARTIAL blobs on device. Should complete in under 10 or 15 seconds. Puts the set of PARTIAL of blobs on your computer as a plist. Checks if Cydia already has a full set for this device and build. If not, it submits this PARTIAL set and returns Cydia’s acknowledgement or rejection and so much more.