How can I set my mobile phone to refuse others to send me messages?

This problem can be solved by blacklisting numbers that don't want to answer the phone or receive information.

Take OPPO mobile phone as an example, the specific method is as follows:

First turn on the phone, find "Settings" on the phone desktop, and click Enter.

2. After entering the settings, find the column of "Telephone" in the drop-down menu and click Enter.

Third, after entering the phone, find the "harassment interception" column and click Enter.

Fourth, after entering the harassment interception, find the "blacklist" item and click Enter.

5. After entering the blacklist, find "Add" at the bottom and click Enter.

6. After entering the address book, select the contact to be blacklisted, check the contact, and then click OK.