Orderman Don Mode D'emploi page 24

Instructions for use
For this process, use the plastic nib of the supplied DON touch-pen
exclusively. Other sharp objects can damage the release area.
Tip
The menu card can now be removed and a new card inserted straight in as far
as it will go.
The menu-card clasp must subsequently be reinserted far enough for it to catch.
Afterwards, the battery pack can be reinserted and the unit switched on again.
After the new menu card has been identified, operation can once again resume.
24
Hand-held Unit