I followed the getting started guide, used Etcher for writing the system image and used a 5V 3A type C power supply. The green led is on but the HDMI is not displaying anything
You can try to dump the log with below method so that we can find out why the HDMI is blanked.
Thank you so much, I followed the video and found an issue with loading the image from the SD card. I wrote the image again to the SD card and now it works fine.