2. Secondly, select "Service" and click "Medical Health".
3. Secondly, click "Electronic Health Card" and then click "Open QR code of health card".
4. Next, slide down, find "Security Settings" and click Enter.
5. Next, find "Unbind" and click Open.
6. Finally, select the health card that needs to be unbound, click Unbind, and then click OK to unbind.