From the notification panel, swipe down from the top of the screen to open the quick settings menu.
Navigate to and tap Screen record.
Tap the dropdown to select whether to record the entire screen or just a single app, then tap Next.
Select an app you would like to record.
Swipe down from the top of the screen to open the notification panel.
Tap Stop to end the recording.
The recording will be saved in the Files app.
You've completed the steps!
