ADB (after special driver install, need to tweak recovery for it to work with normal drivers)
Mounting USB to computer
Flashing zip files
Fix Permissions (caused lots of crazy issues, fix by wiping data if you use it)
Sdparted (the sdcards are mount incorrectly, this will probably destroy your device)
I am in the process of making a recovery specifically for our device, it is mostly done and will be posted here when it is ready!
What you are going to need:
ADB (and know how to use it, don't ask in here)
Rooted Phone (again, that will not be covered, don't ask in here)
Optimus 3D recovery image [Download]
If you don't understand something in that list, DO A SEARCH AND LEARN, don't clutter the thread with crap!
Lets get started!
Lets start by getting the recovery.img file on the phone. Open up a cmd prompt and type:
adb push recovery.img /data
(If you haven't allowed shell su in SuperUser now would be a good time to accept the root request on the phone.)
(make sure your sdcard is not mounted to your computer)
dd if=/dev/block/mmcblk0p6 of=/sdcard/mmcblk0p6.backup bs=4096
dd if=/data/recovery.img of=/dev/block/mmcblk0p6 bs=4096
(each line is single command)
rm /data/recovery.img reboot
Download and install: (unzip and install the 2 exe files)
While booted into ClockWorkMod Recovery, go into your device manager, you should see an "LGE Android Composite Device" with a yellow triangle on it.
right click on it, update driver software...
select browse my computer for driver software
select let me pick from a list of device drivers on my computer
click the "Have Disk" button
click the "browse" button
C:\Program Files (x86)\LG Electronics\LG Android Driver\64BitADB
C:\Program Files\LG Electronics\LG Android Driver
and select lgandadb.inf
From that list select "Android Sooner Single ADB Interface"
click "yes" on the popup