Step 9: Now, select 'reboot system now' from the recovery menu. To access Recovery Mode: Turn off your smartphone and switch on your phone by press and holding Volume Up and Power buttons together.

So, after trying to charge your LG V30 for several minutes and it still refuses to turn on, try booting it up in Recovery mode.

Just like Android smartphones, Android Wear devices have a recovery mode installed, perfect for those times you need to find your way back to stock, or if you need to apply an update manually.