[video=youtube;Z4a7UG8kaPk]http://www.youtube.com/watch?v=Z4a7UG8kaPk&list=UUahggeTU1oddlMWWKj2N8Kg&index=1&feature=plcp[/video]
If you own a Droid 4 and you have bee following my guides you are probably on an ICS Leak at the moment. There had recently been no way back to the official OTA upgrade path until some shifty development by "Jsnweitzel" who has created the ICS version of the Droid4 Utility. It allows us to jump from any ICS build straight to the official 6.6.217 upgrade!
Grab the utility here