Huawei mate40rs mobile phone hidden functions: 1. Speaker dust, operation steps: Settings → Smart Assistant → Smart voice → voice wake up.
2, reverse charging, operation steps: Settings → battery → wireless reverse charging.
3, message withdrawal, operation steps: information → Settings → Advanced → cancel send.
4, One-click matting, operation steps: Home → portrait matting → Add photos - complete.
5, space screenshots, operation steps: Settings → auxiliary functions → intelligent perception → space screenshots.
6, scroll screenshot, operation steps: Settings → Auxiliary functions → Quick enable and gesture → screenshot → knuckle screenshot.
7, wechat double open, operation steps: Settings → Application and service → application split → wechat.
8, call recording, operation steps: phone → Settings → Call automatic recording → All calls.
9, screen display, operation steps: Settings → Desktop and wallpaper → Screen display.
10, window shorthand, operation steps: memo → setting → shorthand → screen edge slide.