What happens next?

How to root the lg optimus g pro
Verify that your lg optimus g pro has a battery charge of at least 75 percent.
Tap on " menu, " then tap on " settings.
Tap on " software development, " then place a checkmark next to " usb debugging.

Pick from:
[1]. Tap on " erase all the settings. " when the page of reset settings displays, tap on " erasing all the settings.;
[2]. Connect your device to your computer using a usb cable. Wait for your computer to recognize your lg optimus, and wait for it download and install all updated software drivers, if applicable.;
[3]. " Tap on " devices, " then tap on " drivers " next to " settings. Tap on " software update, " then place a checkmark next to " device updates and updates.;
[4]. Tap on " samsung galaxy s2 _ (1). Click on " samsung galaxy s2 _ (1) " in the options menu, then select " latest software updates " from the drop-down menu under " os.;
[2].