How do I pair my YI 4K+ Action Camera with the app?

a. Press the shutter button to turn on the camera. Swipe down to open the shortcut menu and tap on the Wi-Fi icon to turn on Wi-Fi.
b. Open the app — Tap the connection button on the middle of the APP tab to enter the connection page, select the YI 4K+ Action Camera and connect to the camera's Wi-Fi.
On the right, there is the option to enter the connection page. Enter the connection page and locate the connect button.
c. Locate the device's Wi-Fi (hotspot named YDXJ_ followed by the 7 digits serial number located on the battery cover.
d. Enter the default password（1234567890）to connect to the camera.