To get back to Froyo:
- settings/apps/development/turn on USB debug
- download SBF file
- install Moto drivers for DX / Win7 64
- install RSD Lite (4.8 or 4.9)
- hold cam/vol down/power buttons to power to bootloader
- plug in to PC
- Run RSD Lite in admin mode
- select device and SBF file
NOTE: Sometime installation hangs at 100% and reports to manual reboot, at this point you have to pull battery, unplug cable and enter back into Bootloader mode by pressing Volume Down + Camera + Power and then plug cable back in. RSDLite should read Complete Successful after connecting and then you can power down,
- Power up into recovery by pressing Home and Power
- Select Search (Right Button)
- Select Wipe Data / Factory Restore
- After complete select Restart