Are you bored of the standing Firestick screensaver? Follow the steps below and you can choose whichever screensaver you like.
I have included some good screensaver to try out.
(APK at the bottom of the page)
1. From the Main Menu scroll to hover over Settings.
2. Click My Fire TV.
3. Choose Developer Options.
4. Click Apps from Unknown Sources.
5. Choose Turn On.
6. Go to About — Network and confirm your IP Addresss
Install the APK from the link below
ADB Command If you want to do this on a FireOS 5 Device
pm grant com.wolf.arlscr android.permission.WRITE_SECURE_SETTINGS