1, when the mobile phone network cannot be connected, you can turn off and restart the mobile phone, or disconnect the mobile phone data network first and then connect later;
2. If the mobile phone can't access the Internet, you can check whether the mobile phone is in arrears. If it is arrears after inquiry and confirmation, it needs to be recharged; If there is no arrears, you can shut down for a period of time and then restart, and then connect to the network;
2. You can download a Tencent mobile phone housekeeper software to detect abnormal problems in the mobile phone network, clean up the memory of the mobile phone, solve problems and improve the running speed of the mobile phone system.