Simons Voss Technologies LockNode Z4 MP Quick Manual page 24

3. Installation
2. Hold the thumb-turn firmly and turn the battery/installa-
tion key clockwise about 30°.
The locking disc will click.
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3. Push the recessed grip inwards.
4. Turn the thumb-turn cover counterclockwise until it
stops.
5. Remove the thumb-turn cover.
6. Carefully bend the black plastic holders outwards.
Card reader cover pops open.
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