First we have to determine the following two articles:
One, is not the mobile phone GPRS Internet service is not open or closed.
Second, the mobile phone MMS parameter is not set up a problem, we just need to reset the MMS parameters.
1. Now start the operation and click "Application" on the desktop.
2. Then find inside the "set" to open it into.
3. Also click on the "More Network" menu to open the entry details below.
4. Click "Mobile Network" as shown in the figure to open it into.
5. Here we can choose the corresponding "access point name" according to whether we are unicom or mobile. (For example, select "SIM 1")
6. Then we click the "Reset to default" details below after clicking "Menu".
when you are done, restart your phone.
Third, now we also click on "Mobile data."
If the above action does not resolve the problem, continue with the following steps:
1. Now on the mobile desktop we double pointing down the notification bar.
2. Then we turn "mobile data" on "mobile data".
Note: If it is still not possible is the network environment has a problem, you can try to change an environment.
Friendship tip: Can not send text message that is the Message Service center number set up a problem, we just ask the SP to reset it.