iPhone · Research guidance. Instructions are based on publisher guidance; a UK IPTV account was not tested on this platform.
Identify the rotation question
A phone can detect orientation while an app keeps one layout by design. Apple explicitly says some apps do not support rotation. Note whether the whole device seems stuck or only a particular player or screen remains in portrait. This distinction prevents an app-specific layout from becoming a general sensor diagnosis.
Inspect Portrait Orientation Lock
On an iPhone without a Home button, Apple documents opening Control Centre from the top-right corner and checking that Portrait Orientation Lock is off. Use the model’s documented Control Centre route if it differs. Note the original choice before changing it so a preferred portrait arrangement can be restored later.
Compare a supported app
Close Control Centre and turn the phone sideways in an app known to support landscape. Apple suggests examples such as Calculator or Safari. If that rotates but the player does not, preserve the difference. A working comparison does not force every app or every screen inside an app to offer landscape.
Check the intended player route
Inspect the app’s actual presentation controls and publisher documentation. A player may have a full-screen action separate from automatic rotation. Do not assume that pressing it changes the operating-system lock or that a landscape interface is guaranteed for every programme. Keep the test limited to the action actually offered.
Report the exact state
Include the iPhone model, iOS version, lock state and whether another supported app rotated. Apple’s guidance includes further device checks when rotation remains stuck more widely. Avoid clearing account data or reinstalling a player solely because one screen does not have the orientation you expected.
Questions, answered
Does turning the lock off force every app to rotate?
No. Apple says some apps do not support rotation.
Why test another app?
It helps distinguish the player’s layout from a wider device-orientation problem.