Firestick New Hidden Developer's Menu

 I hate when they do non-standard Android.

This did not work for new interface. Can't get to all the options . . . yet

hold buttons DOWN and CENTER for five seconds. Then, release the buttons. After that, press the button MENU.

Control Android (Shield - Fire) With PC SCRCPY

Bottom Line - I don't use this but it is interesting and does work.
Download the Windows Version of SCRCPY.
(Scroll down the page to find it.)

You can place the unzipped folder anywhere but C:\ is easiest.

Find your Android device's ip eg. 192.168.1.2

On your Android Device, enable developer mode (not needed on Fire).

Then turn Developer Options ON.

Turn Network Debugging ON

Open Command Prompt as Admin
Navigate to the scrcpy folder
Type adb connect 192.168.1.2:555
Watch Android device and accept connection
Then run scrcpy.exe
You should now have a screen on your PC reflecting your Android.
Give some time after commands to allow things to happen.
This "Android" screen on your PC will not be in the CMD window. Look around.
If you have low bandwidth a switch may be needed to use smaller window, eg.
  scrcpy -b2M -m800 or scrcpy -b2M -m600
To shut off the server when done use adb kill-server.

This is fantastic when it works. Mouse, keyboard . . . everything works.

However . . . these days, few things are needed for streaming and little typing is needed.
(Several different sources are available for each item.)
Downloader is #1
  Fire just say "downloader" into mic.
  Shield (thinking-maybe playstore)
APKTime (Get it right away. Several apps for Shield error on download "can't parse package" but I      have not run into this with Firestick.)
Kodi
  Fire-Downloader http://troypoint.com/kodistable (seems not to be on store)
  Shield in Playstore
Current Best Kodi Build
  http://xanaxrepo.com/repo/
Current Best APK
  UnlockTV APK
  Fire-Downloader http://bit.ly/unlocktv
  Shield-Downloader http://bit.ly/unlocktv
VPN-Private Internet Access
  Seems to be in All Playstores now
Browser
  PuffinTV is the best - (Forget all other browsers)
  Fire get it from APKTime
  Shield get it in playstore
    Fast.com Internet Speed Test works well in Puffin. Bookmark it.
    https://www.techdoctoruk.com/downloads/ is a good bookmark also.
Youtube (no adds)
  This is a moving target . . . So try
  https://www.techdoctoruk.com/downloads/
  or APKTime
Filelinked is another way to acquire apks. You need an address and sometimes a pin.
  This program can be irritating at times.
  address 22222222 pin 4754
This address has most current apks
Ciberflix (has worked well but recently iffy)
CinemaHD (can be okay)

Any more than this and you are just playing. Not that there is anything wrong with that :)

Fire Stick

2019-07-19 Simplified

Downloader is #1
  Fire just say "downloader" into mic.
  Shield (thinking-maybe playstore)
APKTime (Get it right away. Several apps for Shield error on download "can't parse package" but I      have not run into this with Firestick.)
Kodi
  Fire-Downloader http://troypoint.com/kodistable (seems not to be on store)
  Shield in Playstore
Current Best Kodi Build
  http://xanaxrepo.com/repo/
Current Best APK
  UnlockTV APK
  Fire-Downloader http://bit.ly/unlocktv
  Shield-Downloader http://bit.ly/unlocktv
VPN-Private Internet Access
  Seems to be in All Playstores now
Browser
  PuffinTV is the best - (Forget all other browsers)
  Fire get it from APKTime 
  Shield get it in playstore
    Fast.com Internet Speed Test works well in Puffin. Bookmark it.
    https://www.techdoctoruk.com/downloads/ is a good bookmark also.
Youtube (no adds)
  This is a moving target . . . So try
  https://www.techdoctoruk.com/downloads/
  or APKTime
Filelinked is another way to acquire apks. You need an address and sometimes a pin.
  This program can be irritating at times.
  address 22222222 pin 4754
This address has most current apks
Ciberflix (has worked well but recently iffy)
CinemaHD (can be okay)

Any more than this and you are just playing. Not that there is anything wrong with that :)