How to unbind the mobile secondary card from the main card?

The method for unbinding the primary card from the secondary card of the mobile phone of the communication company is as follows:

1. Through the business hall: Take the main card and the secondary card to the business hall, and the staff will help cancel the secondary card business.

2. By labor: Call the operator, such as 10086, and inform the labor that the binding relationship between the main card and the auxiliary card needs to be released, and the trade union will assist in the operation.

3. Through the self-service channel: log in to China Mobile's online business hall or download China Mobile's mobile APP, and find "Secondary Card Management" in "My Account" or "My" to unbind.