How to Block or Unblock Someone on Line App?<br /><br />To Block:<br /><br />Step 1: Go to Friends Tab.<br /><br />Step 2: Open the contact that you want to block.<br /><br />Step 3: Tap on 'little'downward arrow, and just tap on 'block' to block the person.<br /><br />To unblock:<br /><br />Step 1: Go to More Tab, and then Tap on Gear Icon at the top.<br /><br />Step 2: Tap on 'Friends'.<br /><br />Step 3: Tap on 'Blocked Users' at the bottom.<br /><br />Step 5: Tap on Edit, and the Tap on 'Unblock'.<br /><br />It's done.