Click the Unblock button (usually a blue link or a person icon with a minus sign) next to their name.
Look for the tab that says Blocked users (sometimes labeled "Hidden users"). unblock youtube user
A pop-up will ask you to confirm. Click Unblock again. Click the Unblock button (usually a blue link
You will see a list of everyone you have blocked. Find the person you want to unblock. unblock youtube user
Go to YouTube.com and make sure you are signed into your account.