Block Number VIVO Y21L

  1. In the beginning, you should switch on the device and open contact list.{{image8}}
  2. Then, you have to press contact for a moment and click More.
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  3. In the next step, you must select  Add to Blacklist.{{image11}}
  4. Type in the Number and approve your decision.{{image12}}
  5. Success! 
  6. If you want to remove the number from the blacklist, you must follow the same way.
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