My display screen screen (HU) in my 2018 CR-V EXL had many of the same problems as many posters did with the flashing and beeping. I took a video to show the Honda dealer maintenance rep (who claimed that he had never heard of this problem before). They replaced the audio unit and it seemed to to better for a short time until the screen and radio failed completely (just a black screen). I asked the dealer what was the problem and he said that they do not know, they just replace the parts. Since many people have had the same problem, it seems that Honda would troubleshoot the root cause of problem and provide either a software or a hardware fix rather than just replacing the part with the same defective part. I really do like our CRV but am increasingly disappointed by the lack of Honda's attention to get a reliable display.