I have a Samsung Note 4. Since the upgrade to Marshmallow 6.0.1 the built in Clock app's alarms do not sound consistently in the morning.

This only ever happens in the morning (wake up alarm) making it hard to debug. The phone is plugged in, set to vibrate only, and the Do Not Disturb setting allows Alarms and calls/texts from my favorite contacts.

I get a notification that the alarm was silenced after 1 minute, but there's no way I slept through a minute of it sounding. I cannot reproduce during the day however.

[The alarms in the "Sleep as Android" app work just fine under the same conditions. I have been backing up my Clock alarms with Sleep as Android alarms.]

  • @bees Can you describe in how to check if "Doze is optimised" or how to clear the cache for a particular app? Commented Oct 14, 2016 at 18:09
  • For Doze , see this. For clearing app data and cache Settings -> Apps -> Show system (three vertical dots) -> Clock -> Storage -> Clear data and Clear Cache
    – beeshyams
    Commented Oct 14, 2016 at 23:47


You must log in to answer this question.

Browse other questions tagged .