My phone does that too.
But I never check those with power button things.
Thanks alot for your feedback... I am checking now the automatic switch between 2G/3G in the auto mode.
To see if it is impacting the switch speed and so the call han...
its like the sensors .. are drunk ... n works ... like slathig
Try LUX application.
I am not satisfied by the original auto brightness function.
LUX works fine. (http://forum.xda-developers.com/showthread.php?p=53079469)...
I was with the s5 in the pool 15 min and after this my speaker is very lowwwww
Sent from my SM-G900F using XDA Free mobile app
it happend with all, also with Sony water resistant handsets.. don't worry, it will work afte...