I've had my Samsung Galaxy Tab S2 8.0 for a week or two now, and I realized today that the screen has stopped auto-rotating. I've used it in landscape mode before, but now it only does portrait, even if I hold it on its side for several seconds. I've found suggestions that the quick settings screen (the one you swipe down from the top) has a Screen Rotation setting, and if that setting is on, the screen won't rotate. It was on; I turned it off; screen still doesn't rotate. I've found suggestions that I should do a gyroscopic calibration but that must relate to an older tablet, the S2 doesn't seem to have that calibration. I'd rather make the decision myself than have the tablet do it for me, how do I fix this? Advice greatly appreciated.