How to send text messages when Unicom changes the package?

Under normal circumstances, eligible Unicom numbers with single cards without contracts and other preferential bundles can handle the package change business by themselves. Various packages are changed in different ways, which are mainly divided into the following situations: 1, 2G packages are changed to 2G or 3G packages, and the owner needs to hold a valid ID card to go to his own business hall of Unicom. Changes between 2.3G packages. Eligible 3G packages can generally be changed through the following channels: 1, log in to the official website homepage of China Unicom's online business hall, and click Business Processing > Package Processing > 3G package change; 2 log in to the mobile phone business hall client, and click Services > Handling > Business Handling > 3G Package Change; Bring the original valid ID card to Unicom's own business hall. 3, 2G or 3G upgrade 4G package. If 2G and 3G users need to change to 4G packages, eligible users can use their mobile phone numbers and service passwords to log in to the online business hall of China Unicom official website, select the 4G package you need to upgrade, and click "change" to handle it. In addition to the above methods, you can also consult through the mobile phone business hall client, or go to your own Unicom business hall. Changes between 4.4G packages. Eligible 4G package users can log in to the homepage of official website online business hall with their mobile phone number and service password, click self-service > business processing > package processing > 4G package, and select the 4g package to be changed for confirmation. In addition to the above methods, you can also consult through the mobile phone business hall client, or go to your own Unicom business hall. The application for changing the package in the current month was successful, and the next month 1 will all take effect. There are differences in the business policies of package reform in different cities. The business policy of Unicom to which the number belongs shall prevail. It is recommended to contact the Unicom customer service to which the number belongs.