The first half of the video I explain how I bricked my Atrix. The second half of the video is going through the process of my demise. This flashing back to stock or original ROM method DOES work when staying within the same Android OS. For example, going from 2.2.X to 2.2 or 2.3.X to 2.3. It does NOT work when trying to go from 2.3 to 2.2 at least that has been my experience as you see here in the video.
Link to the instructions on how to flash back:
Do not flash this file unless absolutely necessary. It will help those who’ve bricked their device to recover, but this is not for flashing just for fun. I cannot be held responsible for device damage due to this guide.