Hi Jan, thank you for your reply. Today I opened MX4000QU and find the original software on the inside technician who had built Hotel software, was so kind as to leave the original software on the inside.
Switched from the hotel to the original 4.4 software, I could get into the MENU.
On the AV5 have they also changed the software to hotel software 1.1, but not be left the originals that are 3.4. Have attached pictures.
Can your friend may arrange for me Software to 7 pieces Beocenter AV5?