All you need do is boot into fastboot, plug in the usb, open a command window in your fast boot directory, then type the following commands: fastboot oem fb_mode_set fastboot oem fb_mode_clear sent from my G3
Wish I had seen that--followed the commands on another recommendation and it made my phone re-set to factory. No big deal since I set it all up last night, it was much quicker today! But the commands worked. The commands that worked were:
fastboot oem fb_mode_set
fastboot oem fb_mode_clear
fastboot erase userdata
fastboot erase cache
fastboot reboot
My guess is I only needed the first two. The "fastboot erase userdata" was the killer. I didn't realize that would factory reset the phone. But again, its about a 30 to 40 minute job to set up my phone from scratch. I do it every so often just to have a fresh start.