I'm trying to set up remote debugging on my brand new LG G2 phone.

Seen here: http://www.html5rocks.com/en/tutorials/developertools/mobile/

So far, I've:

1. Enabled developer options
2. Enabled "USB debugging" on the Developer options screen
3. On the "PC Connections" screen - I've set "USB connection method" to "PC Software"

So - everything looks good at this point.

However, as soon as I connect the device to my PC, the "USB debugging" setting on the "Developer options" screen turns gray (disabled). If I go to DevTools on Chrome on my PC (chrome://inspect/#devices) and check "Discover USB devices", my phone is not listed.

What else do I need to do?