To update an existing passcode on your Smart Lock C34/E30, please follow the steps below:
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Open the eufy app on your smartphone.
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Navigate to the main screen for your Smart Lock C34/E30 and ensure you are connected to the Smart Lock.
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Tap Manage Access, located in the bottom-right corner of the screen.
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Select the user profile for which you want to update the passcode.
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Enter the new passcode when prompted, and save your changes. Your new passcode will be applied immediately.
If you have any other questions regarding the Smart Lock C34/E30, please don't hesitate to contact us for assistance.












