On the day I bought it, the quickly deepening love I felt for my new LG G3 was seriously dampened when I plugged it in to my computer. I had unlocked Developer options and enabled USB debugging only to enter the default Installer Mode. It all came back to me: the same USB mode-switching rigmarole with past Verizon LG devices.

Today, I varied my Google search and stumbled on the solution, no root required:

  1. Open the Dialer
  2. Dial ##3328873 and press Send
  3. Enter the service code: 000000
  4. Uncheck the Tool Launcher enable box
  5. Reboot the phone

Now when you plug in your phone, it should enter the last connection mode you selected—which, if you need USB debugging, will be Internet connection – Ethernet.

$ logout