Worked for me. Stuck @ bootloader, with the same bootloader update error, selected version JWR66V, and tada.
US Cellular Galaxy S3 (AOKP
Nexus 7 (Untouched
Samsung Epic 4g Touch x2 (AOKP
Hp Touchpad, HTC Desire (CDMA);
HTC Glacier x2, HTC Sensation;
HTC Magic, HTC Liberty; HTC Fuze;
HTC Dream (G1) x2, HTC HD7;
And too many iPhones of all generations and sizes.