Downgrade from iOS 5 to 4.3.3 Using TinyCFW

For those of you that just can’t wait for the upcoming untethered jailbreak, there is finally a way to downgrade your device to iOS 4.3.3 from iOS 5. Provided that you have save your SHSH blobs from your device on 4.3.3, just head on over to this page to download TinyCFW (downloads are on the right side of the page). NotCom, the developer of TinyUmbrella and TinyCFW released a short post on what TinyCFW actually does:

“TinyCFW is a simple tool I put together for a friend of mine. He has an iPad 2 GSM and has his 4.3.3 SHSH but since Apple is no longer signing 4.3.3, it isn’t possible to downgrade to 4.3.3 without getting stuck in a 1015 recovery loop. - It will modify an existing IPSW for an iPad 2 GSM/CDMA or iPhone 4 GSM/CDMA
- It WILL modify the IPSW to update your baseband to the latest
- It will create an IPSW that you can use with TinyUmbrella AND iTunes to restore to a version of iOS that you have SHSHs for
- It is primarily for iPad 2 with a baseband OR iPhone 4.”

NotCom has also warned that this tool was never intended for a public release, so it may be slightly unstable. But if you want to try it out, just head on over to his site to download it!