If the screen doesn't rotate when you turn it sideways, first make sure that the
Auto-rotate screen option is selected in
(or Display, gestures & buttons).
Auto-rotate screen is already selected, try recalibrating the screen if the screen orientation doesn't respond properly to the way you hold your phone.
- From the
Home screen, tap
Display, gestures & buttons.
Place the phone on a flat and level surface, and then tap
After the recalibration process, tap