How To Unblock Someone On Facebook App
1. Click Account then select Privacy Settings in the leading right corner of your Facebook page
2. Try to find the Block Lists tab at the bottom of the page, then click the Edit your lists connect
3. Click on Unblock link beside the name of the person you want to unblock
4. Click Confirm button on the dialog box that appears
Keep in mind: Facebook will caution you that once you eliminated this person from your block list, she or he may be able to see your profile and contact you, depending upon your privacy settings. It won't be possible to add this person back to your block list for 48 hours.
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