How to adjust the brightness of small sun when playing video on vivo mobile phone

If it is necessary to debug the brightness of the video interface in vivo mobile phone, it is suggested to adjust the brightness of the video interface on the left (right) side of the interface for playing video.

The specific steps of adjusting video brightness are as follows (taking Youku video as an example):

1. Find the Youku software icon on the mobile phone desktop and enter Youku.

2. Play videos at will in Youku interface.

3. Enter the left side of the video playback interface and slide to adjust the video brightness.