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  1. #1
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    Still no Luck, I tried putting the old map back, but it can't read it.

    On power-up it displays "Can't Unlock Maps"
    Then "no detailed maps found that support routing, nuvi cannot be used without them"

    When I go to about, I see the basemap, but not the main map.

    I unlocked the maps using fast unlocker 2 and then the img file with gimgunlock as per lollipop's post above and I see my gmapsup.img in the map directory

    Here is my GPS data:

    Boot BLK B0972-00 6.20
    X-Loader B0972-00 6.20
    System B0972-00 6.20
    Basemap F0057-01 5.01
    Suppmap Erased
    Suppmap1 ?????-?? 0.00 Western Alaska, Eastern... D523CDE2
    JCV D3153-13 2.00
    Splash D1340-50 2.00

    So it looks like its treating the main mal as suppmap1, but not reading it correctly.

    I loaded my original gmapprom.img and its not reading that either.

    I downloaded a full gmap image and put that on the SD card and it appears to be working with the image, but I still get the can't unlock maps message
    Last edited by Rhodess; 20th March 2014 at 05:17 AM. Reason: Timed out on me

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  3. #2
    GPSPower Helper Help! New firmware Update/Maps No longer readable
    Help! New firmware Update/Maps No longer readable
    dasilvarsa's Avatar
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    Feb 2011
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    Quote Originally Posted by Rhodess View Post
    Still no Luck, I tried putting the old map back, but it can't read it.

    On power-up it displays "Can't Unlock Maps"
    Then "no detailed maps found that support routing, nuvi cannot be used without them"

    When I go to about, I see the basemap, but not the main map.

    I unlocked the maps using fast unlocker 2 and then the img file with gimgunlock as per lollipop's post above and I see my gmapsup.img in the map directory

    Here is my GPS data:

    Boot BLK B0972-00 6.20
    X-Loader B0972-00 6.20
    System B0972-00 6.20
    Basemap F0057-01 5.01
    Suppmap Erased
    Suppmap1 ?????-?? 0.00 Western Alaska, Eastern... D523CDE2
    JCV D3153-13 2.00
    Splash D1340-50 2.00

    So it looks like its treating the main mal as suppmap1, but not reading it correctly.

    I loaded my original gmapprom.img and its not reading that either.

    I downloaded a full gmap image and put that on the SD card and it appears to be working with the image, but I still get the can't unlock maps message
    You still have a locked map in the Nuvi somewhere, look for it and delete it or rename it.
    The difference between stupidity and genius is that genius has its limits.
    Albert Einstein.

 

 

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