🔸 For iOS devices:

➡️ iPhone 8 or earlier :
1. Press the Power and Home buttons at the same time.
2. Hold them for a couple seconds and let go.
3. Open your Camera Roll photos where screenshots are saved automatically.

➡️ iPhone X and newer :
1. Press the Power and Volume Up buttons at the same time.
2. Hold them for a couple seconds and let go.
3. Open your Camera Roll photos where screenshots are saved automatically.

🔸 For Android devices:
1. Press the Power and Volume Down buttons at the same time.
2. Hold them for a couple seconds and let go.
3. Open your Photo Gallery where screenshots are saved automatically.

Here's how to record your screen (iOS 11 or later needed):
1. Go to Settings > Control Center and scroll to More Controls (or tap Customize Controls if you have iOS 13 or earlier), then tap the plus button next to Screen Recording.
2. Pull up your Control Center by swiping upwards from the bottom of your screen and tap Start Recording. Then wait for the three-second countdown.
3. Open Control Center, then tap the red Record button. Or tap the red status bar at the top of your screen and tap Stop.

For screen recording on Android, you may need to install additional applications.