How to apply for the 1 yuan 4G data upgrade package through SMS?

There are 5 levels of 4G upgrade data packages: 1 yuan/month for 1MB, 3 yuan/month for 5MB. The data in this data package can be used for 4G, 3G, and 2G Internet access, and is limited to use within mainland China. , does not include WiFi access. This is mutually exclusive with 3G traffic package, 4G traffic quarterly package, 4G traffic semi-annual package, and 4G traffic annual package. Each number can only apply for one category once and cannot be accepted repeatedly. Users of Lexiang 4G package, 4G building block package, and FeiYoung pure traffic 4G cloud card cannot apply. You can activate the 4G upgrade data package through customer service, business hall, network hall, palm hall, short hall (edit text message KTSJB1 to 11). The order is effective immediately. The function fee is charged on a daily basis in the month of ordering. The fee is rounded to the nearest cent. The data in the package is optional. Converted on a daily basis, rounded up to the nearest MB; edit the text message QXSJB to 11 to cancel the 4G upgrade data package, which will take effect the following month if canceled in the current month; changes to the package level will take effect the following month. To learn more about service discounts, click the "official website" below and customer service 217 will answer your questions.