Why did Unicom replace the 5G mobile phone with a display trumpet?

There may be problems with the network and communication.

You can view the solution in the following ways:

1. Check whether the phone is in airplane mode.

2. Check whether the cell phone signal is stable. If the network signal is not good or there is no signal, please turn it off and restart, and search the network again. If it doesn't work, it is recommended to take out the SIM card and try to insert it again.

3. Check whether the mobile phone has enough balance.

4. If you can dial some fixed numbers, check whether the fixed dialing function is started. It is recommended to disable this feature.

Note: When fixed dialing is disabled, the PIN2 code will be prompted. The network operator needs to query the password.