How do you loosen a stuck brew group?

Step 1: make sure all the separate parts are in their place and close the hatch of the brew group.

Step 2: turn off the machine by pressing the on/off button. If the machine doesn't make any noise, the machine is turned off.

Step 3: remove the connector from the socket.

Step 4: wait for 2 minutes. Turn the machine again with the on/off button.

Step 5: open the hatch of the brew group and remove the coffee grounds container and drip tray.

Step 6: remove the brew group like you're used to.