How to change the SMS mobile phone number of industrial and commercial online banking online?

After logging in to ICBC Online Banking, the sixth button from left to right in the third row above is "ICBC Messenger". Click on it and select "My ICBC Messenger" on the left, and it will appear:

The receiving method you set is as follows:

Mobile phone1:139 * * * * * E-mail:

You can set and modify your receiving method here: Set the receiving method.

Precautions for express delivery service: Check the precautions for express delivery service.

Click "Set Receiving Method" to change your mobile phone number!