ICBC Little E, please help me, I have a problem

Can I activate SMS authentication now?

You can activate the mobile phone SMS authentication function.

How to activate it?

You can log in to online banking and try to activate it in Security Center>>Mobile SMS Authentication. If you are prompted that the corresponding mobile phone number has not been registered, you can go to the branch counter to activate it.

Are there any fees for activating mobile phone SMS authentication?

It is free to activate the mobile phone SMS authentication service.

Also, what should I do if I want to change my mobile phone number after activating it?

If the original mobile phone number can still receive text messages normally, you can log in to online banking and make modifications in the mobile phone SMS authentication in the security center. This function requires sending verification information to the original mobile phone number. If the original mobile phone number can no longer receive SMS verification information, you can change it directly at the counter.