Hint concerning Compass
it seems that the note does not remember the Compass calibration after reboot.
Just a little hint. You dont have to go to the *#0*# menu to recalibrate.
its enough to start google maps, activate the compass by clicking on the here i am button and then rotate your arms with the note 3 like you are warming up for sports couple times.
Then all three axis of the compass should be calibrated.
Sent from my SM-N9005 using XDA Premium 4 mobile app