What is the most current firmware for the HUI?
We are currently at v1.45. The HUI will tell you what version it’s on when you power it up. To upgrade the firmware, you must contact the Mackie Parts Dept. at 800-258-6883 for an Eprom chip. Remove the bottom of the HUI, make sure you are properly grounded, remove the old Eprom, install the new one, and replace the bottom and power up the HUI.
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