Hello, I have a problem with the UPC BOX 4K decoder. Yesterday everything worked, in the evening I turned off the TV, and this morning the remote control just stopped responding .... it changes the volume, but you can't switch programs or open the menu. The second remote from the TV works normally. I've already tried resetting the decoder and even factory resetting the TV. The hotline cannot be reached by phone, there are no free consultants, and I would like to turn on something other than the children's channel for Christmas... Maybe there are some solutions that I haven't considered, please help ?