Did you try if DV works in Android to test all your hardware and connections?
There is a Kodi buld for Android that can also play DV P7 FEL, same like CE - ng version; I use this buld to get P7 FEL:
net.kodinerds.maven.kodi21.armeabi-v7a-202408160405-698f9e80-Omega.apk.zip