What's wrong with the standby status display of Nokia x5-00 when it is turned on?

The reasons are: SIM card failure, wrong mobile phone setting and software failure.

1, SIM card failure: Check whether the correct SIM card is installed in the mobile phone and whether the SIM card works normally. If the SIM card is damaged or unrecognizable, the phone will not be able to connect to the network.

2. Wrong mobile phone settings: Check whether the mobile phone settings are correct. The phone is set to the wrong network type or network frequency, and the phone will not be able to connect to the network.

3. Software failure: There is a software failure in the mobile phone, which will cause the mobile phone to be unable to connect to the network normally. You can try to restart the phone or restore the factory settings.