Well, I have spent a couple of hours exploring the delights of PINN, and I think that it's wonderful. I used the Etcher image, and everything went perfectly. I have set up SSH too, so that is another learning curve to enjoy. I have surrendered to the idiosyncrasies of my TV and used the VGA socket. ...

Sorry to HawaiianPi. That was a bad text edit on my part. I used Etcher to burn a LibreELEC_RPi4 image onto another micro-SD whilst wrestling with this problem. Just neglected to take the "using Etcher" phrase out when simplifying my notes and drafting the More Details. Re: the LEDS, I didn't notice...

Thanks again for your input. Yes, I found that page in my research. The Pi 4 is certainly booting , and the network connection is up, because I managed to update Raspian. I will try tweaking the resolution next, and then I will try SSH (another learning curve!). I am beginning to suspect that the is...

Many thanks for that. The benefit of problems like this, and helpful responses, is that they all help with the learning curve. I have tried messing around with the config.txt, but beyong uncommenting hdmi_safe=1 nothing seems to have pointed towards a resolution. Maybe I should try adding a config.t...

Apparently the resolution of the TV is: 1366, 768 px

More Detail A new SanDisk Ultra microSD 16GB card is used. It is formatted to FAT32 with gparted. The NOOBS 3.2.1 zip file is downloaded and unzipped. The contents of NOOBS 3.2.1 folder are copied onto the card using Etcher. The Raspberry Pi 4 is connected via a micro-HDMI to HDMI cable to a Samsung...

Thanks for the quick response.

I have tried all three HDMI sockets on the TV.

I can't find the resolution from the on-screen menu.

Summary Reasonably new TV set (Samsung HG28ED690AB ) worked with previous versions of the Raspberry Pi without issues. Now TV doesn’t detect signal from Pi 4 Model B 4GB, doesn’t display rainbow screen on first boot with NOOBS on the micro-SD, and doesn’t display the NOOBS installation options scree...