This is about how to fix improper BD Navigation Menu (BDNM), folder BDMV, firmware 2.0.xx. From firmware 2.0.xx BDNM doesn’t work properly. Strictly speaking it doesn’t work at all. Therefore, I used last proper firmware 1.5.0 in my x8. New firmware 2.0.xx is pretty good, and I like it because of new features, fixes etc. (good work Zidoo team!). I solved BDNM problem in my x8. Now I have 2.0.34 and it works like a charm. What I’ve done? I’ve simply changed zidooBlurayNavigation.apk from firmware 2.0.xx to zidooBlurayNavigation.apk from firmware 1.5.0. How to do this? - take zidooBlurayNavigation.apk from firmware 1.5.0 (\system\app\zidooBlurayNavigation) and copy it to flash drive - root your device (OnkeyRoot 1.1.4) - reboot - install from Google Play RootAppDeleter.apk (it is free) - uninstall system application BlurayNavigation using RootAppDeleter - reboot - install zidooBlurayNavigation.apk taken from firmware 1.5.0 La voilà! You can remove root and uninstall RootAppDeleter.apk, as you like. This is temporary solution until Zidoo team will fix BlurayNavigation.apk.