The easiest way to access the Settings menu is to swipe up from the home screen, which displays all apps installed on the device. Then scroll down to locate the Settings app icon.
Note: another way is to first access the "Quick Settings" menu swiping the screen from top to bottom when the screen is on and unlocked. Swipe down once more to display more icons from the Quick Settings menu. At the lower-right corner of this menu, tap on the gear icon to access the Settings menu.