Trying to Jailbreak Fire TV

I reset my Fire TV back to factory specs because it was working a little wonky. I tried to reinstall Cinema HD using Troypoint instructions but my TV does not have “install unknown apps” in Developer setting so APK Time will not finish loading. I did not use APKTime last time to install so I don’t know where to go from here. Have aToshiba FireTV about 5 years old, help!

Did you enable developer options and debug?

This is what I found.
go to Settings and under System you will find “Security”. Click on it. Then choose “Unknown sources” and tick it.

if developer options is not showing there is information on troy to get it to show