How to modify the mobile phone number of ICBC SMS authentication?

Please log in to your personal online bank and change your mobile phone number through the column of "Security Center-SMS Authentication". ICBC will send SMS verification code to your original mobile phone number. You need to accurately enter the mobile phone verification code and verify your identity with a U shield or password card. After system verification, you will be prompted that the SMS authentication number has been successfully changed, and the SMS authentication service will be sent to the new mobile phone number in the future. In addition, you can bring your valid ID card and online banking registration card to any branch of ICBC in different places to change your mobile phone number.