How to Unblock Someone on Facebook on iPhone, iPad
Open the Facebook app and tap the icon in the bottom right corner with three stacked horizontal lines.
Tap “Settings” on the “Settings & privacy” page.
From the “Audience & Visibility” menu, select “Blocking.”
Tap “unblock” next to the person you wish to unblock from the list of blocked individuals that appears.
To confirm, tap “unblock” once again.
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