Just follow my Post, it Work perfekt for C7006
https://xdaforums.com/android-tv/philips-sony-tcl-android-tv/android-tv-8-0-flash-file-tcl-android-tv-t3926570
Leaked TCL Android TV 8.0 before it is updated on TCL's own website, so if you have a TCL Android TV of model types Percee TV you can injoy Android 8.
Please Note that you have to use USB Port 3 and Not USB Port 2 or you will Problem...