Inleiding
If the keypad has stuck buttons or is unresponsive, you'll need to remove it and clean it or replace it entirely. Follow this guide to do so.
Wat je nodig hebt
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Remove the battery cover by pushing downwards and sliding the cover away from the device.
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Bijna klaar!
To reassemble your device, follow these instructions in reverse order.
Conclusie
To reassemble your device, follow these instructions in reverse order.