REMOVE AUTO ROTATION FROM QUICK SETTING MENU & DISPLAY SETTINGS
You can remove the Auto rotate switch icon on Quick Settings menu to minimize the
possibility of accidentally turning on the auto-rotation function:
1) Use two fingers to swipe down from the top of the screen to open Quick Settings menu.
2) Click button to get into Edit page; tap on and hold the Auto rotate switch icon,
and drag it to the light gray area and then release it.
3) Return to the Quick Settings menu, the Auto rotate switch icon is now hidden.