Please Read and understand the Full Gudie before Performing Any Action.
Warning:- Use these instructions at your own risk. We will not be responsible for everything that happens to you or your device, resulting from the use of information in this guide.
How To Root LG G PAD 7 v400 KitKat :-
Files Needed To Root LG G PAD 7 v400 KitKat
TowelRoot – Download Here
Steps To Root LG G PAD 7 v400 KitKat :-
After downloading the application install and open it touch on make it ra1n button. After that go in playstore and download supersu application and open it, then opening will receive a message to update su binary and tap update and then the normal shortly after finishing the installation will ask you to restart the device and you touches restart . After restarting will already be rooted.
Method for Lollipop and KitKat (With PC): Files Needed:
LG One Click Root – Download Here
Drivers –Download Here
Visual C ++ Redistributable (if not) – Download Here
Steps: In Tablet: Go Settings> Information about the software. Staying clicking the mounting number until it is not necessary you have is a developer . Once this is done you will see that opened a new tab in the settings menu, the Developer Options tab, open it and inside it check the box USB debugging . Leave the USB connection in Storage Mode On the PC: Connect the tablet to the PC USB Debugging Download and install all programs. After that open the LG One Click Root of your desktop as administrator Click start, wait a bit and will reset tablet 2 times during the process. At the end will appear done If not Done and does not work please contact me here in the comments that I help
Source: XDA / avicohh