On Samsung S5 AFTER installing KitKat last week, the mm-qcamera deamon usage has drain down full battery in 7hours (before update 12+ hours uptime was the average. Hopefully an urgent fix is coming. So far the key argument for me for Android was the lack or quick fix of bugs...

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    I can't seem to find a question here. Can you elaborate or edit? – Vishnuvardhan Kumar Feb 23 '15 at 14:09
  • Lack of a question mark doesn't change the obvious: Rapid battery drain is not a positive thing, so how can it be fixed? – Matthew Read Feb 23 '15 at 15:03
  • @MatthewRead Fair Enough. I'll find something. – Vishnuvardhan Kumar Feb 24 '15 at 3:41

There is a bug report that has been filed to AOSP about this with a FutureRelease status (a bug fix will be coming soon). Read it here.

It seems that a reboot provides a temporary fix for the problem. A factory reset fixed the issue permanently for most users.

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