Hello Bepeuko98
I also know the problem with the TV-Box 5 after the update.
(The TV Box 5 is connected to an HP monitor without audio… Audio is linked to Soundbox or Airpods via Bluetooth)
Error message:
Unfortunately, this program is not available to you. A device connected to your TV-Box is not UHD (Ultra High Definition) capable. Find out more at www.swisscom.ch/ uhd-hilfe
With the TV Box 21, the UHD channels also work after the update.
(The TV Box 21 is connected to an HP monitor without audio via HDMI Extractor Box… Audio is connected to the sound box via audio output)
Greetings oldie