Samsung mobile phone automatically sends short messages starting with wosl to 0. What happened?

The mobile phone automatically sends short messages. This problem may be related to software. It is recommended to try the operation according to the following steps:

1. Restart the phone.

2. Check whether the mobile phone has downloaded the latest third-party software (SMS management, free games, software, etc.). ). It may be that the software sends SMS automatically, so it is recommended to uninstall it.

3. If it is not solved, it may be related to the SIM card binding service, and you can consult the network operator to solve it.

4. If it is invalid, back up the data and restore the mobile phone to the factory settings.