Sorry didn’t answer sooner,
I don’t know if understand your question,
How I restored the Factory-programmed Settings, right?
Was in the manual, page 22
Manual Link: http://download.steinberg.net/downloads_hardware/MR816/MR816_documentation/MR816_GettingStarted_en.pdf
Restoring the Factory-programmed Settings (Factory Set)
You can reset all the settings of the MR816 CSX/MR816 X to the initial factory-programmed
one by turning the power on (pressing the [STANDBY/ON] switch to the ON position)
while holding the multi function encoder knob and [PAD] button.
While the operation is being performed, all the lamps of the MR816 CSX/ MR816 X will flash.
When the flashing stops, the operation is completed
and the MR816 CSX/MR816 X starts normally with the factory settings.!! > CAUTION !
Never attempt to turn off the power while factory settings
are being written to internal memory.
Turning the power off in this state results in loss of all user data and may cause the system to freeze
(due to corruption of data in the internal memory).
This means that MR816 CSX/MR816 X may not be able to operate properly,
even when turning the power on next time.