[G3 General] ingoljosh:
***UPDATE: 05/18/15 [1 more variant added]***

First and foremost all credit goes to [MENTION=3279781]bender_007[/MENTION] for making this for US.

Fastest Safest way to flash Custom Recovery for those on Stock Rom with Root Access ONLY.

DISCLAIMER: USE AT YOUR OWN RISK. I AM NOT RESPONSIBLE NOR WILL I BE ABLE TO HELP YOU OUT OF A BRICK OR BOOTLOOP!

Finally what I and many of us have been waiting for!

Simple APK (AutoRec) flash TWRP (OneClick) method.

Must be on Stock Rom Lollipop and Rooted.

***ONLY TESTED ON SEVERAL VARIANTS LISTED BELOW - INSTALL AT YOUR OWN RISK***

AS NEW VERSIONS ARE MADE I WILL POST THEM IN THIS THREAD

Steps

- Download APK

- Install APK

- Open App

- Wait a few seconds while it does some backup.

- Wait for prompt to say that it is ready to flash.

- Click the button to Flash TWRP

- Wait for it to be done.

- If you do not know how to manually boot to recovery

install this widget (Thanks [MENTION=3279781]bender_007[/MENTION])

Download: https://www.dropbox.com/s/9gox6ga7n7cqyf9/reboot.apk?dl=0

- Once done boot to recovery.

and finally... PROFIT!!!

Here are Original download links from [MENTION=5369007]Bender007[/MENTION] All credit goes to him.

Download Links

Download - D850 AT&T

Download - D850 21I AT&T added 29.9.2015

Download - D850 21R & 21Y AT&T added 05.10.2015

Download - D850 21Q AT&T added 21.12.2015

Download - D852 Bell & Rogers & Koodo

Download - D852 MarshMallow - thx to @Dene_Bluesman

Download - D855 INT - no, this is not for marshmallow

Download - D855 INT version 20u / v / w / 21a - no, this is not for marshmallow

20u for those who want to have a more recent kernel(will work on 20H and newer of course, thought it would be handy)

Download - D855 MarshMallow - Yes, this one is for Marshmallow

<- thx @autoprime for suggestions, tips, resources

<- thx @winxuser for testing, risking his life..I mean phone several times :)

Download - D856 added 26.9.2015

Download - LS990 SPRINT

Download - LS990 ZVA SPRINT 28.9.2015

Download - F400L Korean

Download - D852G Videotron

Download - VS985 Verizon

Download - VS985 Verizon 24B

Download - D858hk

Download - F400K Korean/Int'l (Temp link not Playstore)

Download - F400S Korean/Int'l (Temp link not Playstore)

NEW

Download - US990 U.S. Cellular (Temp link not Playstore)

*If your G3 variant is not listed above, send [MENTION=3279781]bender_007[/MENTION] a PM and he should be able to help you if he has the time.

DONT FORGET TO BUY [MENTION=3279781]bender_007[/MENTION] A BEER DONATE HERE

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Dont forget to download your Reboot Widget that way once you flash TWRP you can easily reboot to recovery.

Also by [MENTION=3279781]bender_007[/MENTION]

Download: https://www.dropbox.com/s/9gox6ga7n7cqyf9/reboot.apk?dl=0

Note that none of the apps is for marshmallow..NO..don't try to flash.

ROOTING---->

As for rooting: Root with this and there wont be any issues with supersu

<----ROOTING

XDA:DevDB Information

[GUIDE] 06/16/15 - Flash TWRP W/ AutoRec thanks to @bender_007 Stock Rooted/Lollipop, App for the LG G3

Contributors

ingoljosh, BENDER_007

Version Information

Status: Stable

Created 2015-07-06

Last Updated 2016-04-24