Welcome guest, is this your first visit? Click the "Create Account" button now to join.
Page 2 of 3 FirstFirst 123 LastLast
Results 11 to 20 of 25
  1. #11
    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
    Join Date
    Apr 2009
    Location
    Suomi-Russia
    Age
    56
    Posts
    2,155
    Rep Power
    683

    Default

    Quote Originally Posted by dunnaldur View Post
    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 !
    Search for files with extension *.img in folder:
    on Nuvi - .System and Map,
    on SD - Garmin and Map.

    Single copy of gmaptz.img and gmapbmap.img is system files. All others *.img files is optional maps and you may have a conflict, for example the same maps of other version or overlapped maps!
    Garmin, how much is 30 pieces of silver for Judas today? Were they worthy for crucifix of GPSPower?

  2.    Advertissements


  3. #12
    Member
    Join Date
    Jan 2010
    Location
    New York
    Age
    70
    Posts
    10
    Rep Power
    0

    Default

    I am having a similar problem after updating the firmware from 4.30 to 4.40 in a Nuvi 755. I cannot calculate routes for locations outside the US 48CONUSA. I have tried to calculate some routes in Panama (between two locations) using the SouthAmerica 2012.40 map and I cannot do it. However, I can calculate routes within the USA using the NorthAmerica 2012.40. Before the upgrade I was able to calculate routes without any problem using different maps. I have tried many of the suggestions mentioned before (re-installing maps and different versions of the firmware) but it is not working. This is a puzzling question that I would love to understand and maybe solve.


    EDIT:
    As I said in a previous posting, I had the same problem after updating the firmware to 4.40. I contacted Garmin and they made a lot of recommendations but I could not solve the problem. I am TomTom user (I do prefer the TomTom GPS since it is more "user-friendly") but I have a Nuvi Garmin (755t) that I use when I travel to places where I cannot use the TomTom.

    I spent about a week dealing intensively with this problem and doing many things without being able to solve the issue. I was convinced that something got corrupted when I did the update and the problem was to find what file (or files). After many deletions and changes I think I found the source of the problem. The original NorthAmerican maps (both the regular and the 3d) plus the JCV were corrupted. I deleted all the img files and all the JCV files and I only kept one map (the one I will be using in Panama) and it is working again. I renamed that map from GMAPSUPP.IMG to GMAPPROM.IMG and now it is working fine. I can calculate routes in Panama and do all the things that I could not do before
    like creating custom routes in advance.

    As I said, I am not an expert on Garmin software or hardware and I solved the problem I had by trial and error until I found the source of the problem.

  4. #13
    VIP Master
    Join Date
    May 2012
    Location
    Bangkok, Thailand
    Posts
    12
    Rep Power
    0

    Default

    Hi,

    I am not sure if the OP had solved this, FWIW I had a friend with a similar problem on his Nuvi.

    I was able to solve this by loading the appropriate Basemap on to the unit.

    Hope this would solve it for you.

    Chad

  5. #14
    changa8km
    Guest

    Default

    hello peoples , this proq worked in sp 2 ?

  6. #15
    GPSPower Helper 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 Maps
    dasilvarsa's Avatar
    Join Date
    Feb 2011
    Location
    Global
    Posts
    1,029
    Rep Power
    373

    Default

    Maybe some corruption on Nuvi Internal Drive or Memory Card ?
    Maybe a corrupt file ?
    Maybe a corrupt Flash Region ? (Not so easy to fix)

  7. #16
    Junior Member
    Join Date
    Sep 2015
    Location
    Germany
    Posts
    5
    Rep Power
    0

    Default

    Perhaps someone can help me out, too,

    I updated my garmin 765T unit. New firmware (v4.50), new Maps (For example Garmin City Navigator Europa NTU Unl*** for 2013, 2014, 2015, 2016 as gmapsupp.img), basemap 501 and removed the old gmapprom.img.

    I even tried older firmware versions 3.60 and 3.90.

    The problem is, route calculation works until 99%. Then it says "cannot calculate the route."

    What I've also done was updating the TMC Messages for Germany. It is really weird. All the necessary files should be in there. I even tried it with a sd-card. Attached you find the current file-structure.

    I realized, that when I open the map with my unit, everything works quite slow. Zomming out takes ages. Route calculation is not possible for locations within the same town.

    Thank you for your support.
    Attached Images Attached Images
    Last edited by StefanSchm; 6th September 2015 at 04:27 PM.

  8. #17
    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
    lolypop000's Avatar
    Join Date
    May 2010
    Location
    EU
    Posts
    2,362
    Rep Power
    841

    Default

    How much is your free memory on your unit?
    If you have less then 100Mb or GPX folder larger then 20Mb, then here is your problem.

    Do you create hard reset?
    If you wish, you can [Only registered and activated users can see links. ]

  9. #18
    Junior Member
    Join Date
    Sep 2015
    Location
    Germany
    Posts
    5
    Rep Power
    0

    Default

    Free memory is 1,8 GB. I already reduced the map to Germany only. GPX was 19 MB. Deleted archived data. Hard reset did not help me.

  10. #19
    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
    Join Date
    Nov 2007
    Location
    light side
    Posts
    15,513
    Rep Power
    5042

    Default

    It looks like your basemap is faulty, try to replace it.
    [Only registered and activated users can see links. ]
    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

  11. #20
    Junior Member
    Join Date
    Sep 2015
    Location
    Germany
    Posts
    5
    Rep Power
    0

    Default

    This unit drives me crazy :-/ I already had this basemap with the same size. I replaced it. Tried it again: Cannot calculate the route.

 

 

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •