Hi guys,
I installed the new firmware today V4.0.2 (V4.0.3) and downgraded once more to X3D_Series_V4.0.0_2Jan_2015. This due to the reason that every illustration (image, photo) don't play fullscreen on my tv screen. V4.0 has no problem with this whatsoever. It varies from camera files to plain simple media files in format .jpg/jpeg or .bmp. The thumbnails no issues on all versions.
Another thingie is, which I do not encounter on V4.0, is that the hdmi source switches on and off on a irregular basis.
Non version related is that I always have troubles playing 8/10bit .mkv files. Getting a lot of blocks.
Of course when I connect my tv screen to a laptop it works, but the video quality is better as well. Don't use codec packs, only vlc player.
Did do a search on the forum, couldn't find the answer. Apologies if I overlooked.