P30Pro card two does not show solution

time：2024-12-05 15:02:47 Smart Electronics

P30Pro does not know the card 2 common problem solution

1. The SIM card is in poor contact with the shrapnel in the mobile phone card slot. This causes the SIM card circuit to not work, making it impossible for the phone to communicate with the network base station. At this point, you can remove the SIM card and reinstall it after wiping its gold finger with a cleaning cotton cloth.

2. The system software turns off the modem in the mobile phone signal processing circuit because the application software is installed and the system is incompatible. In this case, the phone can be turned off and then restarted to restart the modem in the cell phone signal circuit. Once the signal is normal, remove the suspicious application that was installed before the problem.

3. The mobile SIM card is not registered with the network is also a possible reason. If inserting this SIM card into another phone still shows "No Service", then it is due to the SIM card itself not being registered with the network.

4. Sometimes, due to accidental reasons (such as loss of signal in the network coverage area), we need to manually search and register with a new carrier to restore normal communication function. Users can manually search and register under the Settings - General - Network - Network Operator menu.

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