1. enter the phone settings page and click the control center.

2. after entering the control center, click custom control.

3. After entering the custom control page, find the screen recording and click the plus sign.

4. After clicking the plus sign, you can see the screen recording on it. Click the home button to return to the home screen.

5. Slide up and call out the shortcut control page. Click the button to start screen recording (there is no sound at this time). If you want to turn on the sound, press and hold the button.

6. After long press, click the microphone to turn on the sound.

7. After the sound is turned on, the microphone button changes color, and it is turned on successfully.

8. Click Start Recording to start screen recording with sound.