Unlock the magic of filming with the screen off on iOS 9 and above, enabling you to record videos even with the screen turned off.
To perform this filming technique on iOS 9 and above, follow these steps:
Note: Execute these actions swiftly; it is recommended to read and familiarize yourself in advance for optimal effectiveness.
Step 1. On the lock screen, tap the Camera icon in the bottom right corner > Swipe up halfway to reveal the camera app and hold in the middle (Refer to the guide image).

Step 2. Keep one hand in the same position > With the other hand, switch to video mode > Choose to start recording.

Step 3. In this step, still keep your hand in the lock screen center > The device is now recording.

Step 4. Still keeping your hand in the same position > With the other hand, press the Home button six times, doing it in a rhythmic pattern like 1-2, 1-2, 1-2 (similar to multitasking gesture) > Keep holding until the screen turns off; success! The device continues recording even with the screen off.

Wishing you great success!
