8. Enter the "Personal Commitment Letter" interface and click "Start Signing". 9. Enter the prompt interface, read the prompt carefully and click OK. 10. Enter the "Draw Signature" interface, draw your signature in the dotted box with your finger, and click "OK". 1 1. Enter the "Personal Commitment Letter" interface where the signature is drawn, and click "Save and Submit". 12. Enter the "Prompt" interface and click "Save". 13. Return to the "Add Family Members" interface and click "Click View". 14. Enter the "Personal Commitment Letter Generation" interface, click "Select from Mobile Phone Album", and select the "Personal Commitment Letter" with complete signature from your mobile phone album. 15. Return to the "Add Family Members" interface and click "Click to upload my account book". 16. Enter the "Photo" interface, click "Photo" to take a photo of my page in your household registration book, and use my page photo. 17. Return to the "Add Family Members" interface and click "Click to upload the binding person's account book". 18. Enter the "Photos" interface, click "Photos", take a photo of your child's personal page in the household registration book, and use the photo of your personal page. 19. Return to the "Add Family Members" interface and click "Add Account". 20. Your child's electronic medical insurance certificate is successfully bound to your mobile phone. Click "Enter the medical insurance electronic certificate display page" to use.