Garmin Fenix - how to upload maps to the unit
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  1. #1
    Administrator Ernie Romers's Avatar
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    Garmin Fenix - how to upload maps to the unit

    Received by email:
    Hi Admin,

    I am an avid Garmin user and off-roader for the last 25 years.

    I recently purchased the Fenix and wanted to let you know that despite the manuals and specs saying otherwise, you can actually upload maps to the unit!

    There are several on-line sources of ready made maps which have been converted from Open Source maps etc to the Garmin format. The ones to look for are the 'IMG' files for Garmin units i.e. in the form 'filename.img'.

    The method:

    Download the 'IMG' file you are interested in.
    Attach the Fenix to your PC or MAC in USB mode and open the unit drive folder as it appears on the PC or MAC.
    There is a folder called 'Garmin' - open it.
    Rename the existing gmapbmap.img file in that folder to any other name e.g. origgmapbmap (so you don't lose it and you can rename it later to restore it).

    Copy your downloaded IMG file into that same 'Garmin' folder and rename it to gmapbmap.img

    Disconnect your Fenix and let it reload it's data (this happens when you disconnect it from the PC or MAC automatically).

    Your new basemap will now appear in the unit!

    NOTES:
    - due to the limitation of the screen and the relatively slow speed of the Fenix onboard cpu, it may take a while for anything to show on the Fenix screen, but patience usually rewards.
    - the smaller the IMG file the faster the Fenix will be able to respond due to having less processing to do.

    Regards,

    Ian
    Dubai - UAE
    Best regards,

    Ernie Romers
    Founder and former site owner, Watchuseek.com

  2. #2
    Member mvyrmnd's Avatar
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    Yep. That's pretty much the method devised in the other thread discussing this. One extra point to add, though.

    You don't need to replace the basemap (gmapbmap.img) you can add your extra map as a supplementary map (gmapsupp.img) and at zoom levels closer than 50km you will see the supplementary map, and at above 50km you'll see the basemap.

  3. #3
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    Re: Garmin Fenix - how to upload maps to the unit

    Sorry for the bother.
    I tried pulling a map of Ohio from OpenStreet, and it downloaded a map that was 161MB. Which is way to big to fit on the fenix. How do I shrink this thing?

    thanks for you help.
    Alex

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  5. #4
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    Re: Garmin Fenix - how to upload maps to the unit

    Use Mapsource to select a part of the original map and to download it to your Fenix.

  6. #5
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    Re: Garmin Fenix - how to upload maps to the unit

    Quote Originally Posted by tomhster View Post
    Use Mapsource to select a part of the original map and to download it to your Fenix.
    On openstreet map, there are a lot of Point of interrest, is it possible to copy the map to the Fenix without these POI in order to have a smaller map in terme of MB ?

    Thanks

  7. #6
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    Re: Garmin Fenix - how to upload maps to the unit

    with GPSMapEdit (http://www.geopainting.com)

    you can edit the map
    crop the area you only need,
    remove POIs, routes, whatever

    so to make it smaller and lighter...

    you will also need cGPSmapper (http://www.cgpsmapper.com)
    to compile the map to IMG

    good luck ;)

    edit:
    forgot to mention that you can edit the zoom levels as well :)
    Last edited by maxgraves; November 4th, 2012 at 01:42.

  8. #7
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    Re: Garmin Fenix - how to upload maps to the unit

    Ok thanks !

    Cgpsmapper seems complicated to use, no gui, just inline command. No other way to convert to img ?

  9. #8
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    Re: Garmin Fenix - how to upload maps to the unit

    Quote Originally Posted by Falconeye75 View Post
    Ok thanks !

    Cgpsmapper seems complicated to use, no gui, just inline command. No other way to convert to img ?
    gpsmapedit do it for you
    you go to File -> Export -> Garmin IMG
    its just looking for cgpsmapper, so you need to have it already installed..

  10. #9
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    Re: Garmin Fenix - how to upload maps to the unit

    Quote Originally Posted by maxgraves View Post
    gpsmapedit do it for you
    you go to File -> Export -> Garmin IMG
    its just looking for cgpsmapper, so you need to have it already installed..

    Thanks Maxgraves !!! It seems to work like a charm !!! I didn't try yet to put the map I build with GPSmapedit but the use was very simple. Just by deleting POI and polygons, I went from 4 MB to 600 KB. Thank you very much !!!

    However, it sems GPSmapedit is not free since it is written that my version is not recorded. It didn't ask me for a serial, may be it will require it after a 30 days... On GPSMAPEDIT web site, I clicked on "free version" but it seems there is only the shareware version V 1.1.75.2.

    Thanks again, with all the information grabbed on this web site :

    Free worldwide Garmin maps from OpenStreetMap for maps
    GPSMapEdit [Main] for editing the map
    cGPSmapper - Your Tool For Creating Maps for building IMG maps

    We have all we need to build our favorite maps. Hope the FEnix CPU will be strong enough to handle these maps and it will not take too much time to scroll and zoom the map.

    What are your max map size recommendation for the Fenix ?

  11. #10
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    Re: Garmin Fenix - how to upload maps to the unit

    I live in Brazil and I'm planning to buy the fenix, but I would like to know if it is possible to upload brazilian map to it?

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