If the robot is failing to initiate the calibration sequence, there are three most likely causes:
MOST COMMON: The power is off. Ensure that the red E-stop is pulled all the way up, the surge protector is on, and the green motor lights on the lift and elbow are on.
If the motor lights are orange, the arm wasn't properly supported during calibration. Power off the robot, then power it back on and give enough lift support to the arm until it starts the calibration sequence.
If the webapp displays a motor engagement error, follow these steps: https://www.getglambot.com/forum/hardware-knowledge/motor-engagement-error
There is a loose or disconnected cable. Check all connections and verify that each one is plugged all the way in and secure:
There is a loose or disconnected internal wire. Open the control panel on the lower front side of the Glambot and ensure that all cables are securely connected.