You Can Update Or Convert Your Actual Cadillac Jack PCB Board CJ-8L With Below Version:
Hot 7 5 Liner Version 2.00 (MCU 5.0)
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Updating the software on your board is easy!
Simply lift out the old EPROM, reinsert the new EPROM
(divot in new EPROM must face same direction as old EPROM removed) and then your board is ready to be plugged in and turned on!