keep getting a message that the waste drawer is not installed.

The first machine may not empty the drawer when calibrating the weight, resulting in abnormal initial weight of the machine. The solutions are as follows:

a. Take out the drawer and press down the different weight sensor with your fingers, the force is greater than 2kg, until the machine starts automatically

b. After the machine is automatically turned on, the menu switches to "Weight Calibration", and when clicking OK, release the finger pressing the weight sensor at the same time.

c. After the "weight calibration" is completed, put it into the empty drawer, empty the inner cylinder of the machine, execute the "weight calibration" menu again, and the machine can be used normally.