Please utilize the below link for updating the firmware on any Synergy Backwash Controller.
https://www.dropbox.com/sh/xpt63f1rrvih1xf/AAAgGLrLWofFhvlG4seviTHXa?dl=0
Yardney Water Filtration Systems
6666 Box Springs Blvd., Riverside, CA. 92507
P (951) 656-6716 - F (951) 656-3867
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