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  1. #11
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    You should need the backup of Non Vol memory coz firmware update or Mapupdater corrupted it
    37xx in Nuvi infos means that your Nuvi lost Non Volatile memory. This Non Volatile memory includes model number, registration code and unlock codes for factory preinstalled map. Since there is no model number, Nuvi software doesn't unlock features which are model dependent. NV rgn#41 contains 3790 model number.
    It can be restored in 2 ways, by sd if someone helps you, or by factory cable,but both ways are a bit complicated., better to send it to Garmin if warranty is still valid.

    EDIT: have you checked in Nuvi infos if you really have 37xx instead of 3790?
    [Only registered and activated users can see links. ]
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    [Only registered and activated users can see links. ]
    You have to navigate to get to the good.
    Nuvi1250/Nuvi 34xx/Nuvi 2200/Nuvi 66/Oregon 600/Galaxy S5 MM 6.0.1/TomTom GO/iGO Nextgen Avic,Basar,Isr.Gift/Navigon
    Please don't flood my pm box with questions you can post on forum!! You won't hear back from me.

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  3. #12
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    Well, I restaured the backup and the unit still with the same problems:

    - pop-up message stating "maps cannot be unlocked"
    - the CN North America map disaperared; the only thing left is the DEM map, which is not enough for routing

    Does anyone care to coment ?

    Thanks
    ============
    Carlos Magalhaes
    Garmin nüvi 3790T

  4. #13
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    Cmagalha
    It seems you didnt read what caty told you.
    Better to read first.
    GPS Lover.
    974c07a6a129e2e0917a011314c2c0bd

  5. #14
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    Quote Originally Posted by Cmagalha View Post
    Well, I restaured the backup and the unit still with the same problems:

    - pop-up message stating "maps cannot be unlocked"
    - the CN North America map disaperared; the only thing left is the DEM map, which is not enough for routing

    Does anyone care to coment ?

    Thanks
    read again:
    This Non Volatile memory includes model number, registration code and unlock codes for factory preinstalled map.
    you lost the above if it's 37xx
    [Only registered and activated users can see links. ]
    [Only registered and activated users can see links. ]

    [Only registered and activated users can see links. ]
    You have to navigate to get to the good.
    Nuvi1250/Nuvi 34xx/Nuvi 2200/Nuvi 66/Oregon 600/Galaxy S5 MM 6.0.1/TomTom GO/iGO Nextgen Avic,Basar,Isr.Gift/Navigon
    Please don't flood my pm box with questions you can post on forum!! You won't hear back from me.

  6. #15
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    i think that you need to send it away
    Quote Originally Posted by catymag View Post
    Probably you hadnt enough space on nuvi, or something went wrong
    Update Mapupdater to the latest version.
    Put your Garmin Device.xml in an 4 gb sd/Garmin folder, connect it to pc and run again Garmin Mapudater.
    Then replace old files in nuvi, check Garmin Device.xml for files paths.
    Voice commands dont work if you dont have the entire CNNAM-
    see :
    [Only registered and activated users can see links. ]
    Do you have bluetooth icon in menu? What do you have in device info? 3790 or 37xx ?

  7. #16
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    i need to spam so i can see all the threads not my fault

  8. #17
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    If you spam I ban you= bad result.
    Try to click the like button as written in your forum header
    you dont need 10 posts.
    The user above solved his problem already
    [Only registered and activated users can see links. ]
    [Only registered and activated users can see links. ]

    [Only registered and activated users can see links. ]
    You have to navigate to get to the good.
    Nuvi1250/Nuvi 34xx/Nuvi 2200/Nuvi 66/Oregon 600/Galaxy S5 MM 6.0.1/TomTom GO/iGO Nextgen Avic,Basar,Isr.Gift/Navigon
    Please don't flood my pm box with questions you can post on forum!! You won't hear back from me.

  9. #18
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    Hi all, I have the same problem, my 3790 reads 37xx in the device.xml, no more bluetooth or voice command, I have no backup to return to regrettably, please advice about the solution that was suggested by Catymag about using SD card.
    Much obliged, Danny

  10. #19
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    @DASC62
    Read your pm box .
    [Only registered and activated users can see links. ]
    [Only registered and activated users can see links. ]

    [Only registered and activated users can see links. ]
    You have to navigate to get to the good.
    Nuvi1250/Nuvi 34xx/Nuvi 2200/Nuvi 66/Oregon 600/Galaxy S5 MM 6.0.1/TomTom GO/iGO Nextgen Avic,Basar,Isr.Gift/Navigon
    Please don't flood my pm box with questions you can post on forum!! You won't hear back from me.

  11. #20
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    Default 3790 Sofware update

    I notice Garmin 3790 and 3790V or 3790T do not share the same Software.
    For 3790, the latest version is 3.00
    For 3790V and 3790T, the latest version is 3.20.

    They give chaotic results, if used wrongly.

 

 
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