Insert a small hex key through the hole on the right panel. The hole is
located just above the air ventilation holes:
Slightly push the hex key into the hole until the right door is released. Note: At this stage the door
is still latched and you will not be able to open it.
Remove the hex key and insert it into the adjacent hole located at the opening
of the right door.
Release the door latch by pushing the hex key in the direction of the platesetter.
The right door is unlatched and can now be fully opened.