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How does ICBC change the SMS authentication mobile phone number?

Two ways for ICBC to change SMS authentication mobile phone number;

1. You can bring your valid ID and bank card to the counter of ICBC to apply for changing your mobile phone number.

2. After the SMS authentication service is opened, you can log in to the online bank to change the SMS authentication mobile phone number. Self-service change of mobile phone number needs to use the original mobile phone number for SMS authentication, and use U shield or password card to verify the customer's identity.