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lowrance dont load map


slurpie

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The lakemaster HSOforum indicates that some GPS units may require a software upgrade in order to use the map chip. There is an update for your unit on the lowrance HSOforum (assuming you have the Expedition C since that's the only Expedition model I see).

You'll find it under Downloads, then Product Software Updates. Look up your unit to find the download. You will need a blank mmc/sd card for the upgrade. (Do not try to put the upgrade software on your Lakemaster chip or you might ruin it, use another blank chip)

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