Change method:
Bring your ID card to the telecom business hall to change your password.
Call 10000 to change the password at the manual desk.
Telecom customer password is the customer identification code of China Telecom, which consists of a set of 6 digits from 0 to 9. A customer with the same property right has only one customer password, but if the same certificate has multiple customer codes (if it is not merged), there will be multiple customer passwords.