I have a GeekDesk, every now and then the display says «rSt» – I keep having to look up the PDF to find the reset instructions, so here they are:
Initial System Reset / Reset Procedure
Step 1: Hold down the “Down” button to lower the desktop until the desktop stops.
Step 2: Let go of the “Down” button.
Step 3: Hold down the “Down” button again for about 5 seconds.