5s can't make phone calls or send text messages. What happened?

1. First, check whether the phone has no phone bill.

2. Pay attention to whether there is a signal around the mobile phone on the same network, and troubleshoot the signal.

3. Whether the mobile phone is set to "airplane mode".

4. The card is not inserted correctly. It is recommended to re-insert the card, restart the phone and try again.

5.SIM card is faulty, so it is recommended to replace it.

6. If the fault is still not solved after the above troubleshooting, it is recommended to send the mobile phone to the maintenance point for testing.