Morning !
after updating my GO910 from 7.9XX Navcore to 8.4XX Navcore (with ALG) when placing the unit in the docking station the GO will not start up. I have to keep the "on" buttom held for 40 seconds at least and sometime it starts and sometimes it doesn't. Once started Home recognises the unit and although there is an error message (something about reporting to TomTom) I have almost all functionality.
Only this start-up/connection ...