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Thread: Gpsmap 296 & 396 basemap
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17th July 2026, 04:20 PM #1Junior Member
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Gpsmap 296 & 396 basemap
Hello all, posting from Portugal
After an intensive search in this good forum, I've managed to change the BASEMAP of both my GPSMAP 296 & my GPSMAP 396, from US to ATLANTIC, on yes, those VERY OLD devices without Mass Storage Mode.
I've used the Attalntik v2.0 for Garmin 66 file, the only one still available on the forum, as none of the other links work anymore.
Has anybody out there has a good source for ATLANTIC database v3.0 ?
Is anybody out there willing to share a memory region 3 DUMP from the ATLANTIC ROUTABLE HIGHWAY DATABASE v3.0 ?
Thanks in advance.
This post copied from [Only registered and activated users can see links. ] to allow assistance in more appropriate section.
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Yesterday, 02:45 PM #2Member +
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Last edited by Alfiogigio; Yesterday at 05:03 PM.
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Today, 01:11 AM #3Garmin/GPS Systems GMod.
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@CitabriaPT
To properly convert the IMG file kindly supplied by Alfiogigio to an RGN file, see this thread: [Only registered and activated users can see links. ].
Because RGN_Tool cannot cope properly with conversion of an IMG file (renamed to a BIN file) into an RGN file, you must modify it in a Hex Editor as explained in that thread .... Or just use gfw.exe which can handle the conversion correctly.
PS & OT: Do you really own a Citabria? (Airbatic).'Thanking Posts' are banned. To thank someone, and/or to see hidden links and content, use the [Only registered and activated users can see links. ] button below left of the helpful post then refresh your browser [F5 key]. 'Thanking Posts' are banned.
Please don't spam. Posts serving no purpose other than to thank or to ask about hidden links are trashed or deleted, it's GPSPower's policy. Please don't spam.
[Only registered and activated users can see links. ] should make their first post as a new Intro Thread in [Only registered and activated users can see links. ].
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Originally Posted by CitabriaPT
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