You can't send text messages without the internet.

3G mobile phones even support 3G on the basis of supporting 2G. If you don't have a 3G signal, it will automatically switch to 2G, and the network speed will be sorted from high to low, H.

third generation

E

Where G and 3G signals are sufficient, H will be displayed, and 3G will be displayed slightly, but without 3G signals, E will be displayed, and the network display G will be even worse. This is the case with telephone messages. Telephone messages, there is no difference between 3G and 2G, you can send messages and make phone calls. It's just that the internet speed is different If you don't have a 3G signal, the phone will automatically switch to 2G for communication!