I have a Fire 7 (9th Gen) that came out this year, running Fire OS 220.127.116.11
I'm a hobbyist app developer and wanted to use my device as documentation says I should be able to. Turned on Developer Options but Enable ADB is not an option anywhere in that page. I tried to see if my device would be picked up by Android Studio with just USB debugging but no dice, it won't recognize that my tablet is plugged in.
I guess my question is, where did Enable ADB go and is there any way to get it back or am i just out of luck for using this tablet for testing.