The mobile phone does not display the barrage above the verification code.

The SMS notification authority is not set correctly, just reset it. Take Xiaomi's mobile phone as an example: open the settings, drop down and click "notification and status bar", then click "notification management", drop down and find "short message", click the "short message" column, and press all the buttons corresponding to green "allow notification", "pause notification" and "lock screen notification". After receiving the short message, the mobile phone can display a barrage at the top.