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  1. #11
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    "Who was the poster of this map? If is pietu you can be sure are correctly unlocked. "

    I downloaded it from here:
    [Only registered and activated users can see links. ]

    But I really don't think the problem lies with the img file. I just downloaded another map that is working fine for Tiger555 who has the exact same device as me.
    I copied it to the SD with the same negative result.
    I'm gonna try it on the device itself next (it's a small file so there is room) but it's taking a long time to transfer.

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  3. #12
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    Ok so my device still doesn't see the latest img file on the SD card.

    I've now copied it to the GPS. It's still named gmapsupp.img and the device still doesn't see it.

    So I guess my next step is to rename or remove my current 2012 gmapprom.img file and rename the new file, gmapprom.img

    But which of the other files need to be removed/renamed

    I'm assuming gmap3d.img, gmap3d.sum
    But what about gmapbmap.img & gmapbmap.sum
    gmapprom.gma, gmapprom.sum, gmapprom.unl
    gmaptz.img, gmaptz.sum


    [Only registered and activated users can see links. ]

    Sorry for all these questions, appreciate all your help.

  4. #13
    Important User Nuvi 755T will not read map on SD card. Tried all obvious solutions HELP!
    Nuvi 755T will not read map on SD card. Tried all obvious solutions HELP!Nuvi 755T will not read map on SD card. Tried all obvious solutions HELP!Nuvi 755T will not read map on SD card. Tried all obvious solutions HELP!Nuvi 755T will not read map on SD card. Tried all obvious solutions HELP!Nuvi 755T will not read map on SD card. Tried all obvious solutions HELP!Nuvi 755T will not read map on SD card. Tried all obvious solutions HELP!Nuvi 755T will not read map on SD card. Tried all obvious solutions HELP!
    catymag's Avatar
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    .sum files are mapupdate related, can be deleted.
    if the gmapprom.img and gmapsupp.img cover the same area nuvi wont see one of these maps.
    You cant have the same City Navigator maps even if they are different versions at the same time in device.
    gmapbmap.img is your basemap, don't delete.
    gmap3d.img is 3D buildings map and must be the same version of your CN to show up and must be unlocked.
    gmapprom.gma, gmapprom.unl are your preloaded map unlock codes, backup them in pc and remove them along the gmapprom.img
    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

  5. #14
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    Thanks everyone... but I officially give up (well for tonight anyway)

    I moved all the existing files, as mentioned above, into a backup folder.
    I renamed the TESTED AND WORKING img file to gmapprom.img

    Powered up the GPS and.... nothing. It sees no map at all.
    All I see on the screen is a small c copyright symbol. No map listing at all.
    When I actually view the map it's just the basemap.

    So it's not the img file, it's not the SD card... there's something evil about my GPS!!!

    I gotta run but if anyone has any ideas please post them here and I'll maybe give it one more shot tomorrow before conceding defeat.

  6. #15
    Garmin/GPS Systems GMod. Nuvi 755T will not read map on SD card. Tried all obvious solutions HELP!
    Nuvi 755T will not read map on SD card. Tried all obvious solutions HELP!Nuvi 755T will not read map on SD card. Tried all obvious solutions HELP!Nuvi 755T will not read map on SD card. Tried all obvious solutions HELP!Nuvi 755T will not read map on SD card. Tried all obvious solutions HELP!Nuvi 755T will not read map on SD card. Tried all obvious solutions HELP!Nuvi 755T will not read map on SD card. Tried all obvious solutions HELP!Nuvi 755T will not read map on SD card. Tried all obvious solutions HELP!
    Neil's Avatar
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    If you haven't already tried resetting it best do that. Back up all other files on the unit. With it off, press and hold the RH lower corner of the screen and turn it on. Follow the prompt to erase all user data.
    'Thanking Posts' are banned. To thank someone, and/or to see hidden links and content, use the [Only registered and activated users can see links. ] button below left of the helpful post then refresh your browser [F5 key]. 'Thanking Posts' are banned.
    Please don't spam. Posts serving no purpose other than to thank or to ask about hidden links are trashed or deleted, it's GPSPower's policy. Please don't spam.
    [Only registered and activated users can see links. ] should make their first post as a new Intro Thread in [Only registered and activated users can see links. ].

  7. #16
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    Just tried a reset. Still doesn't see the map.

    I'm returning everything back the way it was.
    I guess I'll have to do some more research on how to unlock and build my own img file and try that.

    Thanks for all your help

 

 

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