1. Prepare the mi band 4 device, click the middle screen, slide the screen down, and click the More-Alipay option. At this time, a QR code will pop up on the bracelet device.
2. At this time, open the mobile phone Alipay, click the scan function, scan the QR code, and bind.
3. At this time, on Alipay software, click the agreement and wait for binding.
4. Name the bracelet device, and then click Next.
5. Enter the amount to be deposited, click OK to deposit and pay immediately.