Default [Q] Stuck in fastboot, please help

Resolved. All hail the LG mobile support tool. Input B instead of 8 as the last S/N digit the first hurdle. Second hurdle, didn't have the patience to wait out the flash after the lg support app told me it had lost connection and would try again.....nerve racking to say the least. Also noticed after flashing back to factory I have SN number now and KK instead of the JB when purchased. Off to root again I hope......