1. First, open the SMS icon on the mobile phone desktop.
2. After opening the SMS page, select and click the three-point icon in the upper right corner, as shown below.
3. Then click the "Settings" option.
4. After entering the setting interface, select and click the "harassment interception" option, as shown in the following figure.
5. In the harassment interception, select and click the settings icon in the upper right corner, as shown below.
6. After opening the settings page, select and click the "SMS Interception" option.
7. Finally, turn on the "Stranger Number SMS Interception" option.