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  1. #11
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    Thanks for adding that link Caty. I should have included it, however although i do find the 'clash of titans' opinions in it amusing because they are all basically saying the same thing in different ways to describe the outcome thereby probably confusing any layman-reader in the process. All the OP there wanted to know was 'how is a gps tunnel aware' and does it use the light sensor to switch to night mode in the tunnel. If Giomen had simply said that the gps is aware from the map that a tunnel is being entered and then uses simple dead reckoning [linear interpolation] in his answer rather than explain in detail the thread might not have existed beyond two posts, lol! Cnfhbr in Post #4 there hits the nail on the head by explaining that the unit's interpolation mode takes over when activated by the map's IS_TUNNEL attribute.

    Dead [also Ded as short for deduced] Reckoning in it's most basic form assumes that an object traveling in a certain direction [heading] at a known constant speed will continue to do so if no corrections are made and therefore we can deduce/predict where it will be in a given time by calculating the distance traveled from the speed. Or in reverse for our 'tunnel aware' nuvi, how long it will take to reach a known point at that speed. Entering an 4km long straight tunnel at 60kph at 8.11 am will predict an exit at 8.15am [60kph being 1 kilometre per minute].
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  3. #12
    Member + ujang_je's Avatar
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    I need to confirm ..is this map was N@vteq Map ? because i'm little bit confiused within MFM NT and N@vteq [email removed]
    Last edited by Neil; 13th May 2014 at 08:02. Reason: Email link removed, not allowed in posts sorry.

  4. #13
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    Which one is for nuvi 40 or 50 ? I tried but it could not work on it!

  5. #14
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    Quote Originally Posted by jamestan52 View Post
    Which one is for nuvi 40 or 50 ? I tried but it could not work on it!
    gmapprom is always the same for every nuvi, have you unlocked it? Which error do you get? Please give more info or we cant help.
    [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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    Dear James Tan,
    All map image is usable for your Nuvi 40/50..the different is the JCV file,you can spot a different between JCV file size..is seperate / different in size because of the Junction View ( JV ) size,you still can use the smallest one file included JCV file into your Nuvi40/50..just setting the JV appearance to the half screen,so no issue of pixel lack while you use the smallest one file.I'm also didnt ever use JV functions in full screen size..but its depend to you,my opinion is base on my everyday usage.TQVM

  7. #16
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    Hi folks,
    I downloaded 1420_type2001271 - 331 MB (nuvi 1250)
    and when i clicked on it to install, i get "Can Find the unlock record"
    Are the any other files i should but did not download?

    Please advice.....noob here

  8. #17
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    Unrar the .exe, in MapData folder you'll find the .img, unlock with gimgunlock and copy in device
    [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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    Quote Originally Posted by catymag View Post
    Unrar the .exe, in MapData folder you'll find the .img, unlock with gimgunlock and copy in device


    Thanks a lot, it works!

  10. #19
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    Quote Originally Posted by catymag View Post
    Unrar the .exe, in MapData folder you'll find the .img, unlock with gimgunlock and copy in device
    how about the rest of the files in the folder? (ie: jcv, sid etc)
    do i need to copy into my 3790 as well?

  11. #20
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    Look at your Garmindevice.xml in Garmin folder, it contains all the needed paths to copy files in device.
    Example:
    Code:
    Please Login or Register to see the links
    don't forget to enable .System view in your device:
    [Only registered and activated users can see links. ]
    [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.

 

 
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