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  1. #1
    dunnaldur
    Guest

    Default Nuvi 765t - "Cannot calculate the route." happened after update of FW and/or Maps

    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 !

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  3. #2
    Important User Nuvi 765t - "Cannot calculate the route." happened after update of FW and/or Maps
    Nuvi 765t - "Cannot calculate the route." happened after update of FW and/or MapsNuvi 765t - "Cannot calculate the route." happened after update of FW and/or MapsNuvi 765t - "Cannot calculate the route." happened after update of FW and/or MapsNuvi 765t - "Cannot calculate the route." happened after update of FW and/or MapsNuvi 765t - "Cannot calculate the route." happened after update of FW and/or MapsNuvi 765t - "Cannot calculate the route." happened after update of FW and/or MapsNuvi 765t - "Cannot calculate the route." happened after update of FW and/or Maps
    catymag's Avatar
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    Default

    Have you loaded CNE NTU ? NTU gives search problems in old units
    l9ebnsm
    You have to navigate to get to the good.

    Galaxy S5 Kitkat 4.4.2 / Nuvi1200->1250 / Nuvi3790T->34xx / Nuvi 2200 / Nuvi 66 / Oregon 600

  4. #3
    dunnaldur
    Guest

    Default

    Maps I've tried
    CNE NT 2012.10
    CNNA NT 2011.40
    CNNA NT 2012.10
    CNNA NT 2012.30
    USA-HAWAII NT 2012.20
    USA-HAWAII NT 2012.30
    All have been unlocked images just dropped in. No messing with mapsource.
    Issue started after I updated FW from 4.00 > 4.30 and updated the maps. Two of the maps worked perfectly fine prior to the updates !
    I downloaded the rest of the maps to see if it was a map specific issue.

    Any other pointers? :-)

  5. #4
    dunnaldur
    Guest

    Default

    I tried deleting all maps of the device.
    Installed Mapsource and used: "City Navigator North America NT 2012.30 MapSource"
    Sent to device a tiny region in my area.
    Still get "Cannot calculate the route."

    Running out of options, anyone have any suggestions please?

  6. #5
    dunnaldur
    Guest

    Default

    Aaaaah desperate... any suggestions please?
    In its current form the device is a paperweight. Sucks.

    To anyone else out there, if it is working perfectly for you already then _DO NOT UPDATE_ unless you really need it.
    I stupidly had a 'update' twitch, of course I had to install it. Now a useless block of plastic with the warranty expired 1 month ago.

  7. #6
    Master Nuvi 765t - "Cannot calculate the route." happened after update of FW and/or Maps navifan2's Avatar
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    Default

    you can come back to old firmware
    [Only registered and activated users can see links. ]

  8. #7
    dunnaldur
    Guest

    Default

    Hi, and thanks for your suggestion.
    But as mentioned in the original post, I've already tried many older FW.
    "I've tried to:
    Revert firmware to 4.30, 4.20, 4.00, 3.90, 3.60 and 3.40"

    Even tried to re-upgrade and re-downgrade. No difference, still get cannot calculate route on all searches.

    Any other ideas? :-)

  9. #8
    Navigation software expert Nuvi 765t - "Cannot calculate the route." happened after update of FW and/or Maps
    Nuvi 765t - "Cannot calculate the route." happened after update of FW and/or MapsNuvi 765t - "Cannot calculate the route." happened after update of FW and/or MapsNuvi 765t - "Cannot calculate the route." happened after update of FW and/or Maps
    Giomen's Avatar
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    Do you fully delete all old and other maps before loading new?
    Garmin, how much is 30 pieces of silver for Judas today? Were they worthy for crucifix of GPSPower?

  10. #9
    dunnaldur
    Guest

    Default

    I think so.
    Do you know which files are 'critical' to stay on the device?.
    I'd very much like to completely purge anything on there and put it back to factory defaults but I'm not sure what can be deleted !

  11. #10
    Master pitruchio's Avatar
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    Default

    There are no 'critical' maps. Delete them all.

 

 

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