Step 1 – Go to Home screen of your Firestick by clicking Home button on remote.
Step 2 – Click on Find and hover over search icon and type in “Downloader” highlight it and click it.
Step 3 – Click Downloader icon
Step 4 – Click Download button
Step 5 – Click Home Button
Step 6 – Click on the Settings Button Highlighted image. Click on My Fire TV
Step 7 – Click on Install Unknown Apps.
Step 8 – Click on Downloader to Turn on.
Step 9 – Click the Home Button to return to the Home screen. Click on Downloader to open.
Or Open Apps Menu
Step 10 – (See Step 2 Tutorial)