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  1. #1
    Junior Member
    Join Date
    Jun 2010
    Rep Power

    Default Nuvi 850 Wont load base maps?

    I got a used 850 on ebay that has problems.
    I formatted the unit and used map source to load a map on it
    but it says no unlocked map, and shows no maps available
    this is on the unit and also on a SD card
    I used the webupdater to update the unit.
    is there another way to restore it?
    or am i missing something ?
    I can take the sd card with the map on it will work on another 850 that i have

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  3. #2
    ☼ADMIN☼ Nuvi 850  Wont load base maps?
    catymag's Avatar
    Join Date
    Nov 2007
    light side
    Rep Power


    basemaps arent locked
    put it in your garmin directory
    the name must be gmapbmap.img
    you can copy this one in your unit
    [Only registered and activated users can see links. ]
    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




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