How does Samsung a7 use flashlight in WeChat video?

To use the flashlight function, follow these steps:

1. Under the standby page, click Application.

2. Click the widget at the top of the screen.

3. Click on the auxiliary light widget and don't let it go, just drag it to the home screen page and let it go.

4. Click the auxiliary light on the desktop. When the icon turns green, the LED light on the back of the phone will flash. Click the auxiliary light again, and the LED light will go out.