Unknown batery drainage

[Neurosoup]

Hello,

Today I had an unknown batery drainage - phone went from 40% batery to 3 % in 2 hours, without any app or call during this time. I had only mobile data and wi-fi on, but nothing was updated during that time. Even When batery went to 15% it went into batery saving mode (no m data or wifi) and still the batery was drained when I checked my phone. What I noticed was the phone was very hot and now my unlock pattern DOES NOT vibrate when I use my pattern.

[_alexdon_]

Are you using battery savers,task killers?

[Neurosoup]

nope. Not a single app or other thing that could drain the battery. Was just strange that in so little time it was drained and now this issue with no vibration when unlocking the phone with the Pattern unlock. Any idea how i could fix the pattern vibration.

Usually it stops vibrating when on power saving mode - below 15%.

[Sam]

If you check the Battery Usage section of Power management, what are the top few apllications and percentage of battery they have used?

What are your thoughts about this forum? Let us know by doing this short survey.

[Neurosoup]

[_alexdon_]

It seems pretty normal to me.Restart your phone and check if the same will occur again.

[alex00752]

Is there a chance that the driver that controls the cpu frequencies got stuck and the cpu worked at 2.2 Ghz for that time? Because a power draining app should appear in battery usage, and since it looks normal from the screenshot  maybe some power management driver got stuck..   (My opinion)

[_alexdon_]

Yes,but I guess it should have showed up.A restart helps most of the time when something drains the battery.

[SignedAdam]

The Unknown battery drain is google play and its services, its also some of sony mobiles apps which cant be removed from the phone

[Neurosoup]

I did a restart after the issue and it all went to normal, but since than I have no vibration on pattern unlock.

On a side note - the phone was  veyy hot when the drainage occured and it was after some update from Sony`s apps.

Since than battery usage is normal, but still no vibration on pattern unlock.

Seems strange and phone automatically disabled the pattern vibration on power saving mode, but since than I recharged the phone to full 2 times and still no vibration.