HOW TO SIDELOAD APK ONTO FIRESTICK
Step 1 connect firestick to Internet
Step 2 go to settings on firestick
Step 3 go to about then developer options
Step 4 turn apps from unknown sources on
Step 5 exit back till on home screen
Step 6 go to magnifying glass to right
Step 7 search downloader and download
Step 8 install downloader
Step 9 open downloader
Step 10 enter the url provided
Step 11 download and install apk
Step 12 will get a popup saying ready to launch once the above is done