This looks a lot like English but it makes no sense.
Smart reflex works like this:
Set a MAX voltage in Franco's app, the phone works its way down until it gets as low as it can.
That's why 350 is set at 1000+ in the app but runs at 840.
Smart reflex calibrates the voltages.
So the voltage you set is the MAX voltage which it starts at to work down to lowest possible voltage.
Its quite simple really.