I haven’t seen the guide here but these are ways I am aware of and recommend the first method as it’s easy:
Downloader Method (easy recommended):
- Search for “Downloader” app on your FireTV and install it.
- Go to Settings > My Fire TV > Developer Options > Install Unknown Apps > Open “Downloader” and turn it ON
- Install Amazon Fire TV app on your Android Phone
- Copy the download link from this page (Amazon Fire OS Devices): Plex for Android
- Open Downloader app installed above and paste the url using Fire TV remote app which also downloaded above.
- Once the file is downloaded you will see Install option… and you’re done.
Alternative Method (hit and miss):
- Install Apps2Fire on your Phone
- Setup Apps2Fire with your Fire TV and it should be connected.
- Once the app and Fire TV are in sync you can install APKs from your phone storage or apps installed on your phone.
USB Method:
- Make sure you have OTG Cable connected to your Fire TV.
- Download the .APK from Plex for Android page and save it on your USB drive.
- Have a file manager installed on your Fire TV, say ES File Explorer.
- Plug the USB drive to OTG Cable > Open File Manager and install the .APK file locating on your USB drive.