The mobile phone card will not display SMS messages.

1. According to the information you provided, if your mobile phone has no service, please troubleshoot it by the following methods:

The 1SIM card has insufficient contact with the metal contact of the mobile phone, so it is recommended to try to insert the SIM card again.

2 change the machine to test whether the SIM card is faulty;

3 The location is a signal blind area or there is no signal suddenly;

No.4 is in an abnormal state such as arrears, downtime, etc., or the service is suspended without real name registration.

2. If this is not the case, please contact Unicom's manual customer service for details. The actual situation is subject to local policies.

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