ᐅ UPPLEVA TV and Sound System Issues

Hello,

I have a problem with my Uppleva TV and the associated sound system. I have the previous model (2013) in white, along with the matching sound system (the one without the Blu-ray player).

Here are my issues:

When I turn on the TV, it automatically switches to the HDMI input where the sound system is connected. If I try to switch back to a regular TV channel, the TV switches back to the sound system’s HDMI input after about 1 second. So, I can only use the TV without the sound system if I disconnect the HDMI connection.

Another problem is that the TV cannot be turned off properly. After some time, an information window appears saying "TV will turn off automatically in one minute," but nothing happens and the remote control becomes unresponsive. When I turn off the TV using the power button on the device, the picture turns off, but the screen still glows faintly (visible only in a dark room).

I have already installed software updates, but unfortunately without success.

Is this a known issue? Is there perhaps a solution?
I would be very grateful for a quick response.

Kind regards,
IKEA-OKJA