In case you've forgotten the PIN you've created on Fire Stick, that can be a problem if you want to change the current parental control settings. However, not all is lost, and you can reset the PIN with a little bit of effort: 1. The first thing you need to do is enter any PIN, a random 5-digit number. 2. Underneath the PIN, a code will appear. Then, you have to go to this Amazon page and sign in with your account. 3. There, enter the reset code provided on your TV and select “Continue.” You will receive on-screen instructions on what to do next. Also, you will be asked to assign a new PIN for the parental controls.