Under the "Connections" section, tap on Blocked Accounts .
This was the universal method that worked regardless of whether you remembered the person’s handle. how do you unblock someone on instagram 2019
However, keep in mind that:
Use this method if the person has changed their username, if you have been blocked by them, or if you simply want to see a list of everyone you have blocked. Under the "Connections" section, tap on Blocked Accounts
Inside the Settings menu, look for the Privacy section. From there, tap on Blocked Accounts. This screen shows a complete list of every user you have ever blocked. To unblock a specific person, find their name in the list and tap on their profile. This will take you to their main page, which will likely appear empty since you still have them blocked. Inside the Settings menu, look for the Privacy section
On their profile page, you will see a blue button that says Unblock. Tap this button, and a confirmation pop-up will appear asking if you are sure you want to unblock the user. Tap Unblock once more to confirm. Once finished, the button will change to Follow, indicating that the block has been lifted.