did u see this?Same as you'd do with Ubuntu. Just be sure to write aboot, boot, dbi, laf, rpm, sbl1 and tz. Not the ones it says in the xda "no download mode no recovery" thread.
http://forum.xda-developers.com/lg-g2/general/unbrick-lg-g2-qhsusbbulkqualcomm-9006-t2939627
here it say other file?
modem, sbl1,tz,aboot,rpm,boot,recovery,laf.
allso i have g2 d800 AT&T 32G
from were i get this files?