TWRP for 5.0 D800 G2s

This post is to get TWRP running properly on a G2 that has updated to 5.0

There is an apk called autorec.apk that is supposed to install TWRP, and it does, but when you reboot, it gives you a security error and shuts the phone down. Basically soft bricks it. This method is what i used to install twrp and allow flashing of custom ROMs.

First, downgrading to 4.4.2 is not only fairly easy, it is also necessary to get TWRP working properly.
Download and install the LG flashing tool here
then do the same with the LG driver found here

Then youre going to need 2 files for the flashing tool
1: Megaflash dll
2: the 4.4.2 image that the flashing tool installs here

instructions for using the flashing tool are found here

Make sure to follow all of the instructions including changing the port # for the device to 41

After flashing back to 4.4.2, using towleroot to root takes mere seconds to complete

after that, download TWRP and place the file somewhere easily located on your phone.

Install Flashify, and use it to flash the TWRP 2.8.6.0 D800 image file for your custom recovery.

VERY IMPORTANT!! Reboot your phone to recovery and once in recovery, be sure to reboot recovery from within TWRP before rebooting system.

After that is done, you are ready to flash custom ROMs.

This is the procedure I used and it worked like a charm. There might be other methods that work, but this one positively worked for me on the D800 i dealt with.

I know this set of instructions isnt as pretty as other tutorials, but it works. Let me know if you have any issues with the links or process.