Thanks for the post. I myself was applying the software downloads for my D800 At&t Variant. I am currently stuck right now and your explanation helps make a little sense of what is happening to my phone. I was stuck at the cm boot animation and tried to do a wipe and restore and a bunch of other stuff and nothing was working. Decided to flash back using the software from that thread, however the flash was listed as successful, but upon getting to the main screen of the os, keyboard doesn't come up, no signal or wifi, then after a minute or two the phone will just reboot. My thoughts are either that I have the OTA software missing key components from the original stock, or my efs is shot, in which case I am concerned. Just got this phone and would love to fix it. I will hunt for original software.
I had done a full lg stock backup through CWM and then exported that to my computer. Would that contain my efs info?