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The firmware update files for GPSMAP 8212 are bundled along with like a gazillion other units in a non-separable download over 600MB in size:
You would need to extract it to see the individual firmwares which are probably only identifiable by HWID rather than individual model numbers. Once you have the firmware, it's possible to examine it in a hex editor to see which commands are available to write from a card to the unit: [Only registered and activated users can see links. ].Code:Please Login or Register to see the links
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Thread: Garmin Marine Unit 8212 Charts
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23rd January 2015, 09:08 PM #1Garmin/GPS Systems GMod.
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