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How to update Rotel receiver firmware using RS232 on Mac

maestrokev

maestrokev

macrumors 6502a
Original poster
Apr 23, 2007
875
8
Canada
I've got a Rotel RSX-1550 receiver and there a number of new firmware updates I'd like to load myself. The problem is that Rotel update software requires a Windows computer with a RS232 DB9 port.

Has anyone with a Rotel system updated using Windows on VMWare/Parallels and a USB to RS232 serial adapter?
 
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