alexo1us

Just thought I would throw my 2 cents

on this model the parking brake wire senses ground (not positive) the PB switch (on most) completes a ground for the light to turn on in the dash.

This is a nav unit so I grounded mine to ground wire in the harness on my 310 it shows the parking brake on.

Since it has been mentioned and I did do a test it work with out connecting the green wire and uses the satnav as a motion sensor of sorts. Which is why it turns off some more thought and attn processes when moving. (pretty smart)

For the 310 the PB wire is sort of a manual override bypassing satnav function.

Since the PB is almost never on and I want my passenger (me most times) to be able to work the thing when driving. I hooked mine up.

On a side note this unit has work perfect so far its accurate and fast recalulates fast for stops and side trips.

for the price this is the best SatNav with audio funtion on the market.

I should also point out I'm on OS version 0002

I'm getting same error but when I check it has given me access to the SD card as a removable drive.

I didn't choose my device maybe why I'm getting an error.

I'm running the 0002 version

I'm going to hold off doing the last firmware since so far it's been flawless and since some had it working until update.

Will keep working on it let you know if I find some thing anyone try rollback of firmware update?