How to Turn on/off Screen rotation in Samsung smartphones?
Note: If the app you are using doesn't support an orientation, it will not change when you rotate your phone. Not all apps work in both Portrait and Landscape mode.
Step 1. Open the Quick panel.
Tap More options (the three vertical dots).
Step 2. Tab edit buttons.
Step 3. Find the Auto rotate icon, and then drag it to
your desired position on the
Step 4. Tap Done.
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