If you have actually blocked someone unintentionally or altered your mind about the block, however, it is likewise reversible. You can alter your Privacy settings to unclog and allow someone back into your Facebook world.
How Can I Unblock A Person On Facebook
1. Click the down arrow next to "Account" at the top right of any page on Facebook.
2. Click "Personal Privacy Preferences" from the Account menu.
3. Click the "Edit Your Lists" link under the Block Lists heading. It is at the bottom center of the page.
4. Click the "Unblock" link beside the name of the individual you want to unblock. A list of the individuals you've blocked is discovered under the Block Users area.
Idea
Unblocking somebody does not immediately put that person back in your buddy list. You need to include the newly unblocked individual as a friend and await them to validate the request.
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