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    Sometimes the app crashes during the night and the alarm does not function properly in the morning. what can I do?

    To continue enjoying your Wake-up Light, make sure that you have iOS8, iOS7 or iOS6 and the latest Philips Wake-up light App version 1.0.11 installed.

    Reinstall the app if the problem remains

    First remove the app from your iPhone/iPod touch by pressing and holding the Wake-up Light icon until the 'x' mark appears on the icon. Press the 'x' mark and confirm to remove the app. Then reinstall the app from the Appstore.

    The information on this page applies to the following models: HF3550/01 .

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