First, install the PlayMemories Mobile app on your phone;
Second, turn on the WiFi function of the Sony BlackCard RX100M4, and at the same time, turn on the cell phone's WiFi search to select the camera, and connect the camera by inputting the password displayed on the Sony BlackCard RX100M4;
On the Sony BlackCard RX100M4 Press MENU, "Wireless icon", Send to cell phone, and desired settings in order. If you press the "Send to phone" button in playback mode, the [Send to Smartphone] settings screen will appear directly;
After successful setup, all images on the Sony BlackCard RX100M4's memory card will be displayed on the phone, and you can choose to upload them.