1. Confirm that the current securities account has been unbound from the original bank card. If you no longer use the original bank card, you can consult the customer service of the securities company to confirm whether the bank card has been untied.

2. Go to the securities company to which the new bank card belongs, and bring valid identity documents, the new bank card and the bank card of the original securities account. Apply to the staff for bank card replacement.

3. The staff will handle the bank card replacement procedures for you. You may need to fill in relevant forms and provide information such as bank code, bank and bank address of the new bank card.

4. After processing, the staff will print the relevant receipt for you to confirm the completion of bank card replacement. After that, you need to contact the bank customer service to confirm the change of bank card binding relationship.