Function 5: About taking photos quickly: In addition to pressing the shutter button, there is another way to take photos with the focus ring when it is inconvenient: use the volume button! This is suitable for one-handed parents. Press the volume button to take a picture. 6. Bring your own beauty function: When using the front camera, click the smiling face in the upper right corner to bring up the beauty function. It avoids the situation that the installation of third-party software occupies the memory of the mobile phone, and also facilitates many functions. 7: About scanning code! This is common sense, and the function that the mobile phone camera can scan the code can be realized under the network conditions. You only need to aim at the QR code to scan it automatically.