First Things Fisrt! i apologies for not making video in LONG LONG TIME i explained in video why did this happen!
Sorry for the last clips bad quality, its because i had to use laptop webcam :(.
TO OPEN RECOVERY ANY TIME LATER:
*Power off device
*Now Hold Volume Down+Power button
*once you see LG logo then Quickly Leave Volume Down button and hold again. DONT LEAVE POWER BUTTON.
*now it will ask if you really wana factory reset phone CLICK "YES"
- dont worry it will not reset phone--
*then it will ask again sure Click "YES"
here you have recovery opened.
So today i present you with how to install TWRP on LG G3 D851,
Blogspot (Here i have written whole tutoriel) : http://mobilerampage1.blogspot.com/2016/08/how-to-install-twrp-on-lg-g3-d851.html
How to ROOT LG G3: https://www.youtube.com/watch?v=MIXWhWt9kA0
Link to TWRP manager: https://play.google.com/store/apps/details?id=com.jmz.soft.twrpmanager&hl=en
Facebook : https://web.facebook.com/MobileRampage/