Hi,

I've tried to search around for a few hours, found some people asking the same question but not a single person that managed to resolve this issue.

The Garmin Nuvi 765t errors out with "Cannot calculate the route." on all requests. It starts calculating and then around 80%-99% it throws up the error. Every time.

I originally had 4.00 I think and updated to 4.30, but at the same time I also put in 2012.20 maps.

I've tried many things and wonders if anyone her would have any tips?

I've tried to:
Revert firmware to 4.30, 4.20, 4.00, 3.90, 3.60 and 3.40
Reset by holding bottom right corner at boot.
Disabled avoidances
Delete the GPXs
Loading maps: 2012.30, 2012.20, 2012.10 and 2011.40
Loaded Basemap: Worldwide autoroute DEM Basemap NR 5.00 and Worldwide autoroute DEM Basemap NR 3.00
Enable and Disable Bluetooth
Bunch of other things I can't remember

Unit is out of warranty so it would suck to have to throw it away.
Any suggestions would be appreciated !