How can i switch on the heated bed on the upmini1 with gcode?

How can i switch on the heated bed on the upmini1 with gcode?
As the UP Mini1 has no temperature Sensor the Code for Heated Bed Temperature and wait for temperature wont work (they switch on the heated Bed and then wait forever)
The fast Temperature code without waiting doesnt switch on the Heated Bed.
The same happens with the Chamber codes.
Use Up Studio2 for heating is limited to 60 min of heating.

#;M140: Set Bed Temperature (Fast)
#;M141: Set Chamber Temperature (Fast)
#;M190: Wait for bed temperature to reach target temp
#;M191: Wait for chamber temperature to reach target temp