1. You can modify it by entering your mobile phone number and service password through the online business hall. If you don't know the service password, you can reset it by SMS or online business hall, but the online business hall package is limited. If you have your own needs, you can modify them directly.

2. You can bring the valid certificate of the owner to the local business hall to make changes. The packages in the business hall are comprehensive, so as long as there are no restrictions on the packages currently used, they can be changed.

3. Due to different policies in different cities and regions, the services offered are also different. If you need to know the specific service package, it is recommended to contact the local Unicom customer service 100 10 for consultation.