[Android Q&A, Help & Troubleshooting] ne0zone75:
[Q&A] How to root LG-P875 (Optimus F5) using motochopper [apply also to F3, F6? & F7]

Well, dear LG Optimus F3/5/6?/7 owners, you can root your device right now WITHOUT unlocking the bootloader

:cool: Simply download the attached file below, extract its content and place it in a single directory. This tool works under Windows, Linux and Mac OS X :highfive:

Thanks a lot to goofyextreme for F3 & platinumpresto for F7 feedback

:good:

Positive feedback needed for the F6

Non specific device rooting procedures for motochopper under supported OS's are available HERE -> original thread by the author of this tool ...

Thanks a lot djrbliss

!

My Optimus F5 was preloaded with JB 4.1.2 and i run Ubuntu x64 : Running motochopper on my device rooted it in about 1 min. or 2

!!!

Theorically you do not need something else than the extracted files from the provided archive and it's true for all motochopper supported OS's : Windows, Linux and Mac OS X : adb executable is embedded into this zip for these three operating systems !

Then, to be sure you have a working setup, please run :

Linux

From a terminal, please cd into the extracted archive directory and type :

# sudo ./adb.linux devices

... it must output something like this in your terminal :

# sudo ./adb.linux devices
List of devices attached
yourdeviceserialnumberhere

If you see the serial number of your device listed then you're ready to go further

! Ubuntu x64 works that way out of the box but recently i switched to another x64 Linux distribution and the above command failed, because of an incompatibilty problem beetween the motochopper adb executable and OS librairies ...

if you're running a Linux distro and you do not have a correct output from the above command THEN install the adb package from the repository of your choice for your operating system

...

after that is done you'll need to edit and modify slightly the motochopper Linux script (run.sh) in order to use the adb executable you've just installed instead of using the one provided by the zip file attached below when running the tool

! ... if you don't know how to modify this script, just let me know and i'll tell you what you need to do ;)

Windows

First of all you'll need to install

LG United Mobile Driver

, then REBOOT, and type from an elevated command prompt ("launched as an administrator") :

# adb.exe devices

... it must output something like this in your terminal :

# adb.exe devices
List of devices attached
yourdeviceserialnumberhere

If you see the serial number of your device listed then you're ready to go further

! Otherwise check than you have enabled USB debugging in the "Developper Options" tab and that the USB connection mode is properly set on your phone (in the Windows device manager you must see an item which mention that an ADB Interface is installed on your system ... the real name on your system may vary from mine so i do not give an exact interface name ...)

Only when you have seen your device serial number in the output of the command "adb devices", you're OK to launch the motochopper tool

:

Check that you're inside the extracted motochopper directory and please type :

Linux

# sudo ./run.sh

Windows

# run.bat

The tool will take 1 min. or 2 to complete ... and when your phone has rebooted, it's rooted :D It is safe to try it in my opinion because i don't think this tool can brick your phone in any way, in the worst case it will fail BUT

please note this little disclaimer with care : i am not the developper of this great tool and if you decide to use it, then it's at your own risk

...

Happy rooting ;)

NOTE : For Mac OS X users please refer to the original thread by the author of motochopper (link at the beginning of this post) because i don't know much about Mac OS ...

IMPORTANT NOTE

: Some of the LG Optimus Fx Series models recently gained an OTA update ! THE motochopper tool apparently DOES NOT WORK AT ALL if you upgraded your ROM with the OTA update ! It seems to be USELESS to try it in such conditions BUT i think it is still HARMLESS to test the tool -> in the worst case it will fail ... if so, reset your device to factory settings from the Android menu and please try another way to root your phone; THAT SAID I REPEAT THE TOOL IS PROVIDED AS IS AND IF YOU DECIDE TO USE IT, IT WILL BE AT YOUR OWN RISK ...

INFO : As of 2014-03-10 i close this topic because it is useless => motochopper do not work anymore on LG Optimus Fx Series :(
​

See you around,

Bye ;)