How to change the SMS authentication of ICBC?

Changing SMS authentication mobile phone number through online banking requires the original mobile phone number to receive authentication SMS. If you have an ID card and an online banking registration card at the counter in different places, you can directly change the SMS authentication number. The online search you described is still the way to query the original mobile phone number. If you have finished processing at the counter, you can compare the information printed on the business document with your new mobile phone number to see if there is any discrepancy. At the same time, you should also check whether the business type is to change the online banking SMS authentication number. For example, the original reserved SMS authentication mobile phone number found in the online banking of the security center >> SMS authentication >> change SMS authentication mobile phone number is still the old mobile phone number, indicating that the change was unsuccessful. You should also take the card to the outlet to clarify the business to be handled and go to the counter to make changes.