From the menu on the left, selectBlocking.

In theBlock Userssection, you’ll see the names of any users you’ve previously blocked.

Find the person you want to unblock and selectUnblock.

Select Settings & Privacy.

Facebook will explain what will happen when you unblock this person.

If you were previously Facebook friends, unblocking someone doesn’t automatically make you friends again.

Blocking someone on Facebook is more serious thanunfriending,snoozing, orunfollowingthem.

Select Settings.

When you block someone, it’s as if you’re invisible to each other on Facebook.

On an Android gadget, tapMenu(three lines) on the top right of the screen.

Scroll down to thePrivacysection and tapBlocking.

From the menu on the left, select Blocking.

In theBlocked Peoplesection, you’ll see the names of any users you’ve previously blocked.

Find the person you want to unblock and selectUnblock.

If you’ve blocked someone on Facebook, they won’t be notified.

Find the person you want to unblock and select Unblock.

Or, they may notice that they’re not seeing your posts.

Select Confirm to unblock them.

Tap Menu, Settings & Privacy, Settings

Unblock a person on Facebook mobile app