Ok I'm pleased to announce the the G2 chart worked perfectly with a 2Gb card, but I was not able to make the firmware update. Currently the 440S has v3.0 firmware (2007) on it, and I was using a 1Gb microSD card with an adapter in order to store the file that is generated by the updater. Not sure if this would be the problem, or if there is a specific procedure I need to follow in order for the update to work on the GPS. I was under the impression that I just needed to insert the card with the update, and turn on the unit. Thanks.
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