How to use SMS to open 3G traffic packets?

In some cities, only 3G users who have been connected to the network for more than half a year can open 3G domestic traffic package service, which can be superimposed with the traffic in the package. You can try to send the corresponding SMS instruction to 100 10 to open:

30 Yuan Bao 500 m: "KT3GL30" takes effect the following month 1, and "LJKT3GLL30" takes effect immediately;

Send "QX3GLL" to unsubscribe.