Dear friends,
I have an aquaero + 2 x PA2 Ultra, all of them connected via USB to mobo and between them by Aquabus. I'm looking into aquasuite where is PA firmware update button because there is only aquaero firmware update button. When I upgraded each product separately I could update firmware.
Here is AquaSuite - Aquaero update button
And This Aquasuite - PA System
Best Regards