How does red rice cancel phone camera sound

The specific steps are as follows.

1. In the red Meter mobile phone We click on "Camera" and then find the "settings" option, and then click "Advanced Features" in the settings, click to enter

2. We entered the mobile phone advanced settings to select the focus mode, in the pop-up option will focus mode to continuous focus

3.ok, and then back to take a picture to try, is not the drop of the focus sound?

There is a root version is to get the phone root permissions, and then we have a photo album corresponding to the sound file, this method of risk comparison is not introduced.