Need to enter Settings-General-System Update. First, update the MEIOS of the mobile phone to version 4.3.2 (if it is the latest version, there is no need to update it). At present, it is only used when taking a single full-length photo. You can enter camera-photo mode-classic portrait mode-rear camera-"Beauty" in the lower right corner, switch to the rear camera when shooting, and then identify the whole body.