If the package change is unsuccessful, certain conditions are not excluded. For example, the following conditions will affect the processing of 2G3G upgrade of 4G package:

1 network card user;

2 group member users;

3 users with contract plan restrictions;

4. Other special circumstances (such as number arrears, abnormal use of blacklist, missing user information, etc.). );

There are other restrictions that make it impossible to handle.

Even if the above reasons are eliminated, it can't be handled or not. It is recommended to contact Unicom customer service for details.

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