Just got a new Fire HD8 8th Gen OS 184.108.40.206, installed the launch hijack clone that a user kindly shared on this thread. When I try to turn on Accessibility \detect home button, it's just a blank screen.
My older Fire HD8 7th Gen, the launcher hijack clone works fine. Did Amazon block the ability to turn on detect home button press?
I too just purchased a Fire 8 and had this blank screen issue with Detect Home (Hijack), but then I let it update itself to Fire 220.127.116.11 and that control was activated. Now running Nova Launcher (via the also installed Google Play Store) without issue - aside from the 'known' 5 sec lag on Home Button.
Would have returned Fire if I couldn't get to a 'real' Launcher. Its actually a decent little device for what I need it to do now, but the Amazon product-heavy Fire Launcher would have driven me nuts.