GPS Week number rollover — TomTom Community

GPS Week number rollover

Going around in circles. Told that I should take action in relation to the above and then told that my GO730 is no longer supported. Thus, can't seem to get the GPSWNRO downloaded to my device. Is TomTom suggesting that I now put a perfectly good SatNav into the bin??


  • UnhappyGO730UnhappyGO730 Posts: 5 [New Seeker]
    In addition, TomTom has indicted that there is not enough Internal Memory and suggests removing data from it to make room. What can i remove? Why can't the additional memory be available by incorporating external memory on an SD card?
  • DougLapDougLap Posts: 7,943
    Hi @UnhappyGO730

    If you have updated it after 18 December 2018 to software VERSION 9.541 you are okay.
  • UnhappyGO730UnhappyGO730 Posts: 5 [New Seeker]
    I have Version 9.510. Yet, they released in December Version 9.541 which, according to them, prepares your navigation device for the week number rollover in April 2019 which has an impact on GPS . Can't get that update!!
  • UnhappyGO730UnhappyGO730 Posts: 5 [New Seeker]
    More information:

    Device AK7AJ CVA7N
    App 9.510.1234792.1, OS 842337
    (2039, 4/4/2013)
    64 MB RAM (free: 10.7MB)
    GPS v1.20, Boot 5.5120
  • UnhappyGO730UnhappyGO730 Posts: 5 [New Seeker]
    Hi Douglap. Thanks for your response. The system will NOT allow me to update to VERSION 9.541. Any suggestions? Thanks
  • dhndhn Posts: 33,345
    edited March 2019
    1. Make a backup of your unit's content. Use a manual method, not Home. See here:

    2. Use Windows File Manager to delete all the loose files in the root of the device. Loose files are all those NOT in a folder.
    3. Connect the device to Home and see if the proper application is offered now.

    If not................

    Call support but do NOT respond with a device when prompted in order for a live agent to reply:

    1890 812 008
    Monday-Friday: 09:00 am to 5:00 pm
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