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http://forum.xda-developers.com/showthread.php?t=2334544
it says optimus F5 but this is the one i used and i had no problems
moses@linux-hafb:~/Downloads/motochopper> sudo adb devices
root's password:
List of devices attached
LG-LS720-25988c8 device
moses@linux-hafb:~/Downloads/motochopper> sudo ./run.sh
[*]
[*] Motochopper: Android root exploit (Linux/OS X version)
[*] v1.0
[*] by Dan Rosenberg (@djrbliss)
[*]
[*] Tested on the Motorola Razr HD, Razr M, Razr Maxx HD, and Atrix HD.
[*] Supports lots of other devices as well. ;-)
[*]
[*] Before continuing, ensure that USB debugging is enabled and that
[*] your phone is connected via USB.
[*]
[*] WARNING: This will likely void the warranty on your device. I am
[*] not responsible for any damage to your phone as a result using this
[*] tool.
[*]
[*] Press enter to root your phone...
[*]
[*] Waiting for device...
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
[*] Device found.
[*] Pushing exploit...
4199 KB/s (1283460 bytes in 0.298s)
[*] Pushing root tools...
5928 KB/s (366952 bytes in 0.060s)
5731 KB/s (1867568 bytes in 0.318s)
6217 KB/s (1578585 bytes in 0.247s)
pkg: /data/local/tmp/Superuser.apk
Success
[*] Rooting phone...
[+] This may take a few minutes.
[+] Success!
[*] Cleaning up...
[*] Exploit complete. Press enter to reboot and exit.
Framaroot worked for me.
using Gandalf method.

It just means that root explorer needs root access so you can use it to access the root directories/files and make changes if you need to like removing an app. All root apps require this access.Does anyone know what this means?
Does anyone know what this means?
[Q&A] How to root LG-P875 (aka Optimus F5) using motochopper [apply also to F3 & F7] - xda-developers
it says optimus F5 but this is the one i used and i had no problems
Works on windows 8?
im guessing this wont work on a windows 8 computer?If anyone wants to root this device you can root it without bootloader unluck by using "motochopper". Just google it,download,enable usb debugging,and run it. It automatically runs,just follow prompts. If youre using windows run the"run.bat".
im guessing this wont work on a windows 8 computer?
my computer wont extract the run.bat file