Generally eligible Unicom 2G/3G package users, single card, no contract, no other preferential bundling, no arrears, etc. You can use your mobile phone number and service password to log in to the online business hall /sAbMM to upgrade the 4G national package, or you can upgrade the 4G combination package through /sAApR, select the 4G package you need and click "Change" to handle it.
Other types of package changes can also consult Unicom's manual customer service. The actual situation is subject to the Unicom policy of the number attribution.