What if Samsung's mobile phone receives an anonymous SMS and turns it on and off repeatedly?

1. turn off the phone and restart it.

2. Try to receive again at the replacement time.

3. Send short messages to yourself and see if there will be repeated reception.

4. try to replace the SIM card of other mobile phones. If it is invalid, it is recommended to contact the SIM card network operator to verify the current network status.

5. If the network status is normal, it is recommended to back up the data in the mobile phone (such as contacts, multimedia files, etc.) and restore the mobile phone to the factory settings.

if the problem still exists, it is recommended that you bring the purchase invoice and three-guarantee certificate to your nearest after-sales service center for testing.