Similar to this post, I am unable to boot my newly acquired RaspberryPi 4 & Digi+ installation. I bought a bundle from the website (incl. power source, SD-card, reader case), so components should be right.
I get a solid red light and a blinking green (four times, repeat on intervals) and no signal from HDMI.
I followed the instructions and flashed the SD-card using Etcher, and can see that the content was written properly. I can try another card if needed.
Can anyone help me on how to start troubleshooting the issue?