Downgrade Your Original iPhone 2G, Back To iOS 1.0 (Jailbroken & Unlocked)

Link to all the software: Check your iPhone’s serial number: How to downgrade your original iPhone back to iOS 1.0 (from ). Notice: If at any point you want to back out and revert back to a working iOS (using a recent iTunes version), just put your iPhone in Recovery Mode and restore the IPSW file. You might also want to close iTunesHelper for this. I hope this video was