[LG G Flex 2] naymyoaung:
u can ROOT H959 V15a/H959 v15c andriod 5.1.1 version official Using LG h955 v15a rooted system image.i did mine lg H959 twn v15a and h959 twn v15c /v15E official root ^^.

THis thread http://xdaforums.com/g-flex2/development/lg-g-flex-2-ls996-zv6-sprint-5-1-1-t3169212

Follow his instruction :

lease follow these instruction closely...also not responsible for brick or anything that happens to your device..do this at your own risk.

1.	Ensure you have the proper drivers for your phone. If you don't, download and install the proper drivers.

2.	Extract the file you downloaded for your phone, and move the resulting "rootedsystem.img" file to the root of your phone's internal SD card with MTP mode. Do not rename this file, or move it into any folders. If you don't get a file named "rootedsystem.img" DO NOT continue. You need to properly extract the file.

3.	Download the LG_Root.zip in the second post .. ((thanks to [MENTION=4911249]Unjustified Dev[/MENTION] https://www.androidfilehost.com/?fid=24052804347788843 ))

4.	Download and unzip the LG_Root.zip in your preferred location

5.	Enable ADB debugging on your device

6.	Power off your device, When the device is powered off, hold volume up and insert a USB cable connected to the PC Wait for the drivers to install

7.	go to the LG_Root folder (the one you downloaded) Double click ports.bat (This will give us the COM port in which our device is connected we are looking for the Diag port)

8.	In the root of LG_Root folder start a command promp (Inside of LG_Root folder hold shift and right click a blank space you should see "Open command window here")

9.	In the command window type the command "Send_Command.exe \\.\COM4" (no quotes)......(NOTE: change"4" to ur diag port number from step 8.

10.	Type "id" and press enter (no quotes). You should get back some text starting with "uid=(0)root gid=(0)root". If not, press CTRL-C, and do step 10 again (the application sometimes doesn't respond on the first command).

11.	Run the command specified for ur varient in the section below titled to flash the rooted system image.

12.	After a few minutes of sitting, you should get back a "#" prompt. This indicates the process has finished.

13.	Type "LEAVE" (no quotes) and press enter. Your phone should reboot, and your phone will be rooted.

Now that you're rooted, MAKE SURE YOU DISABLE OTA UPDATES, if you accidentally take an OTA, you might not be able to roll back or fix it.

You can also delete the rootedsystem.img from your phone's internal SD card to save some space.

thanks to [MENTION=5785041]TheAxiks[/MENTION] [MENTION=4654107]Sj12345[/MENTION] [MENTION=4514585]Feltox[/MENTION] and [MENTION=1339904]randrew87[/MENTION]

For International H955 (V15a) [ this worked for H959 V15a and h959 v15c too]

Step 11 Code:
dd if=/data/media/0/rootedsystem.img bs=8192 seek=53248 count=458752 of=/dev/block/mmcblk0

Rooted system Image

H955-V15a

https://drive.google.com/file/d/0B6EBFSa68t8tMnlLbEdBTmdPVXM/view?usp=sharing

LG_Root link:

https://www.androidfilehost.com/?fid=24052804347788843

Thx> Originally Posted by kevin3688 [ H959v15E Stock Rooted system.img (15E - Hong Kong/Singapore) ]

https://drive.google.com/file/d/0B0U...ew?usp=sharing