Was du brauchst
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Open the key. Using a small screwdriver gently push in the plastic clips at the marked points. One by one. You have to push up the lid a bit at this side.
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Replace the battery with a new one. Battery type: CR2032 (3V)
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Follow the steps backwards to assemble the unit.
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Fast fertig!
To reassemble your device, follow these instructions in reverse order.
Abschluss
To reassemble your device, follow these instructions in reverse order.
Ein Kommentar
East as promised. One remark only: You need a PH1 screwdriver when working the brass ("yellow") screws.