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  1. #11
    Join Date
    Jun 2010
    Rep Power

    Default Show contents of unit system folder

    I wanted to replace the internal map on my nuvi 1340 from the 2010 ver to the 2011. I had the 2011 map as gmapsupp, but could not find how to show the contents of the system folder of the nuvi, although it must be in the forum somewhere. I eventually discovered the method and note it here in case anybody else has same problem.
    Operating system XP
    To display contents of Garmin device, Start-> Control Panel

    double click Folder Options -> View tab

    check box Display contents of system folders

    click Show hidden files and folders

    uncheck-Hide protected operating system files

    click Apply, and the system folder will appear.

    backup gmapprom.img and gmapprom.sum from this folder to the pc, and then delete them from the nuvi system folder

    copy gmapsupp.img and gmapsupp.sum, in my case from the sd to the nuvi system folder, rename them gmapprom.img and gmapprom.sum and I now have the 2011 maps on the device taking the place of the redundant 2010 maps.
    It worked for me, but usual care should be taken in backing up first etc.
    When you have finished set the pc folder options back to their previous settings.

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  3. #12
    catymag's Avatar
    Join Date
    Nov 2007
    light side
    Rep Power


    should be useful if before posting you could look at tutorial index
    this thread merged with the previous one
    You have to navigate to get to the good.

    [Only registered and activated users can see links. ] Password for my files: gpspower.net
    Please don't flood my pm box with questions you can post on forum!! You won't hear back from me.
    Galaxy S5 Kitkat 4.4.2 / Nuvi1200->1250 / Nuvi3790T->34xx / Nuvi 2200 / Nuvi 66 / Oregon 600

  4. #13
    Important User

    Ballebar's Avatar
    Join Date
    Jul 2009
    Off the Grid ...
    Rep Power

    Thumbs up Enable Windows to show hidden files and folders ...

    To enable "Show hidden files, folders and drives" in Windows Explorer and look for the ".System" directory.
    Files and directories that begins with a dot are hidden in UNIX and Linux that uses this dot-prefix standard.

    Attached Images Attached Images
    Don't post thanking posts. Use the "Like"button instead.

    [Only registered and activated users can see links. ]

    NOTICE! Due to other activities I'm now having a very low attention to questions and requests here at GPSPower.


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