Randy,
if you are familiar with Linux, you could add these few lines to the '/etc/init.d/S01create_data' script that should hopefully preserve the existing DATA partition on your SD card:
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These lines need to be added after you write a new R1CBU firmware upgrade to the SD card, and before you put that card with the new firmware in the X6100.
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Basically right after you write the SD card, you have to mount /dev/sdX2 somewhere on your Linux PC, edit the file <mountpoint>/etc/init.d/S01create_data, add those lines in the same place as in the link above, and finally eject the card (eject /dev/sdX).
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You may want to make a backup first, should something go wrong.
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73,
Franco K4VZ
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