The method to cancel the blacklist is as follows:

Enter iButler--Utility--Harassment Interception--Blacklist--Long press to cancel the blacklist number, and click Delete. .

If you have more questions, you can enter the vivo official website/vivo mall APP--My--online customer service or the vivo official website web page link--slide to the bottom--online customer service--enter manual customer service to enter Consult to find out.