Sign boot images for LG devices with locked bootloader
Created by: Nutcake
As I outlined here, many LG devices older than the LG G4 (but not mako or hammerhead, since those are Nexus devices) have locked bootloaders that cannot be officially unlocked, so custom boot images won't work unless they are officially signed.
Thankfully, this python 2 script exists to sign custom boot images and is confirmed working for the d855 and from what I can find, all devices newer than the LG Optimus G but older than the G4, which is a fairly big lineup. Would it be possible to integrate this into the flashing process? Maybe as a deviceinfo flag? This might be somewhat related to #101 (closed).