What if the mobile phone can't connect to the mobile network?

There are many reasons why the mobile phone can't connect to the mobile network. Different reasons have different solutions, as follows:

1, the signal is unstable

Except in one case, if the user finds that the mobile phone cannot use the mobile network, he can first check whether the signal received by the mobile phone is full. If three or less squares are displayed, it proves that the environment where the mobile phone is located is disturbed or hindered, resulting in abnormal reception of the mobile phone signal, such as in the basement, elevator, train and so on. In this case, there is no good solution, either using WiFi network or changing the use environment to use mobile network data.

Step 2 default

If the mobile phone is in arrears, you can't use the mobile data network. The three major domestic communication operators offer two payment modes: prepaid and post-paid. Most users use prepaid mode. Once the mobile phone is in arrears, it will enter a single stop state within 24 hours. At this time, the mobile phone can only answer calls and receive short messages, but can't make calls, send short messages and use mobile data networks.

Characteristics of mobile phone mobile network

1, 2G network

2G is the second generation mobile communication technology, and its main feature is digitalization. Compared with previous analog signals, digital signals are more reliable and stable. 2G network supports short messages, voice calls and some basic data transmission services, but the data transmission speed is slow.

2.3G network

3G is the third generation mobile communication technology, and its main feature is high-speed data transmission. 3G network supports many services, such as video calling, high-speed Internet access, streaming media playing and so on, and the data transmission speed is much faster than that of 2G.

3、4G

4G is the fourth generation mobile communication technology, and its main features are higher data transmission speed and lower time delay. 4G network supports high-definition video calls, online games, high-speed downloads and other services, and the data transmission speed is much faster than 3G, reaching hundreds of megabytes per second.

4、5G

5G is the fifth generation mobile communication technology. Its main features are faster data transmission speed and lower delay, and it also supports more device connections and wider application scenarios. The 5G network can support ultra-high definition video calls, VR/AR applications, smart homes, autonomous driving and other services, and its data transmission speed can reach several gigabits per second.