Yeah me too... here's what you do... download the latest RSD Lite...and the FlashMe stock 5.5.886 file from this thread...
(Solution) Invalid Flash Mode (S) (Boot Failure) / Bricked Bionic
attach your phone while in the fastboot failute screen... RSD should see your device... unzip the FlashMe zip and run the XML from RSD...
it will load 14 files, then reboot into stock recovery....and flash the .886 update...
and upon reboot go thru the setup, attach your phone to the RELEASED ROOT process and choose #2 (root and forever root)...
then once you know you have the forever root, go to about phone and accept the 5.5.893 OTA...