Honeywell CN75 User Manual page 17

How to Replace the I/O Cover
1. Loosen the screws securing the I/O cover to the computer.
2. Press the release buttons on the sides of the cover, and then remove the cover.
3. Detach the security tether.
4. Attach the security tether on the replacement I/O cover to the computer.
5. Snap the new cover into place.
75 Series Mobile Computer User Guide 7