Here is a simple tutorial on how to unlock/relock bootloader your LG G Watch R. You need ADB and an understanding of how to use it.
Warning: You do this at your own risk!!! This could turn your G Watch R into a very expensive paperweight!!! If you don’t know how to do it or are uncomfortable DON’T DO IT!!!
BACK UP YOUR DATA BEFORE DOING THIS!!!!
How to Unlock / Relock bootloader LG G Watch R:
Congratulations You Have Successfully Unlocked Your Bootloader
Note: Unlock will VOID your Warranty, type the following will relock the bootloader and regain the warranty:
Fastboot mode usually comes up if your LG G Watch R went wrong when trying to flash a recovery image, for example when flashing TWRP recovery or ClockWorkMod.
How to enter into fastboot mode:
Now you can easy enter the Recovery Menu of your G Watch R.
LG G Watch R SmartPhone Photos - LG Cell Phone Pictures
In order to cook (Flashing / Rooting) your LG G3 S D722, you have to download and install the latest USB drivers to your Computer in first, then connect your phone to your PC via USB cable.
Following is a package that includes the latest LG United Mobile Driver revision 3.13.2 for Windows XP, Vista, Windows 7 and Windows 8 OS.
LG G3 S D722 USB Drivers Download:
If you get into usb connection trouble when with your LG G3 S, please let us know, we will reply you as soon as we can. Enjoy!
LG G3 S D722 Phone Photos - LG Cell Phone Pictures