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yes that is what you want, flash rom.
You do not need either other option.
Do a "system reset" before you start (with the old code in the box).
PW is 1668
Run the upgrade to send the code to the box.
WAIT FOR THE FINISH INDICATION. It will happen many seconds (about 30 or so) after 100 percent complete transfer.
Do another "system reset" again after the sucessful download.
I used windows XP on a system with a REAL serial port.
Make sure you use a straight thru serial cable (not crossover).
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