Does it matter if Apple doesn't respond when it opens a community in 5s? Do you want to open data roaming at the same time and then an e appears, and open it at home at the same time?

It doesn't matter. E stands for 2G network, as slow as nothing. It is best not to open it. Did you not handle the traffic, or opened the 4G service, or the traffic has arrived online this month, and now it is only 2G. Consult the customer service, and you will know what is going on. Mobile 10086, China Unicom 100 10, and Telecom 10000 don't matter. E stands for 2G network, which is as slow as nothing, so it is better not to open it. Did you not handle the traffic, or did you not open the 4G service, or the traffic has reached the online level this month, and now it is only 2G? Consult the customer service, and you will know what is going on. Mobile 10086, China Unicom 100 10, and Telecom 10000 don't matter. E stands for 2G network, which is as slow as nothing, so it is better not to open it. Did you not handle the traffic, or did you not open the 4G service, or the traffic has reached the online level this month, and now it is only 2G? Consult the customer service, and you will know what is going on. Mobile 10086, China Unicom 100 10, and Telecom 10000 don't matter. E stands for 2G network, which is as slow as nothing, so it is better not to open it. Did you not handle the traffic, or did you not open the 4G service, or the traffic has reached the online level this month, and now it is only 2G? Consult the customer service, and you will know what is going on. Mobile phone 10086. Unicom 100 10. Telecom 10000.