How to unblock Facebook friend using Facebook mobile application

To unblock Facebook with the help of the mobile app, open your Facebook ID in the Facebook app, then click on the free three line, then click on account settings, now you will have the option of blocking in front of you. Click on it, as soon as you click on it, the whole list will open in front of you, which you have previously blocked, you just have to click on Unblock in front of the one you want to unblock. In this way it will be unblocked.