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Thread: HOW can i update my nuvi 250 to 2012.10

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    Default HOW can i update my nuvi 250 to 2012.10

    i downloaded all the files from

    City Navigator Australia and New Zealand NT 2012.10


    and
    just put the map file and .unl into folder?


    is there any Tutorials for update?...ths....
    Last edited by qky; 06-05-11 at 02:51 AM.



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  • #2
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    all you should have to do is find gmapprom.img on your device & replace it with the new gmapprom.img (unlocked of course)
    BTW don't forget to back up your old map/s incase the one you replace it with is corrupt.

    If you can't find gmapprom.img on your device, see here for further clues
    Cheers, Tiny
    "You can lead a person to knowledge, but you can't make them think? If you're not part of the solution, you're part of the problem.
    The information is out there; you just have to let it in."

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    update success..ths...

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    Hi
    I also tried updating my nuvi 250 as above but when I turned it on I got the message no detailed maps found.
    After reinstalling the original map it works properly.
    Any thoughts as to what I may be doing wrong?

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    Possibly the map you used was corrupted in download, extraction or transfer process.

    Try again with a fresh download of unlocked image file.
    Cheers, Tiny
    "You can lead a person to knowledge, but you can't make them think? If you're not part of the solution, you're part of the problem.
    The information is out there; you just have to let it in."

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    Downloaded extracted and installed again seems to be working will go for a drive tomorrow to check .
    Thanks for your suggestions Tiny.

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    Tiny (03-06-11)

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