I have purchased (3) Rock Pi 4C+ through Amazon. I am using a 5V 3A official RaspPi power supply. I have doubled checked and the RaspPi starts with no issues and I receive the Red and Green light on the RaspPi.
I have downloaded the Offical Rock Pi 4C+ Debian Image
https://github.com/radxa/debos-radxa/releases/download/20221109-1007/rock-4c-plus-debian-bullseye-xfce4-arm64-20221109-1514-gpt.img.xz
I used Rufus to mount the image to my SD Card
My problem: On all 3 Rock Pi 4C+ units it is the same thing.
Please note: I only have inserted the SD Card, Display cable, and Power Cable - nothing else
- I have only the Green led, the Blue never illuminates or flashes
- The HDMI (2k of 4k) never outputs any display, it is black and off
I have used multiple displays (5", 7", and full size) and they all work on the Rasp Pi
I have also powered up the display an additional power supply and it just reads - No HDMIN Input - The USB ports do not seem to have power, I have connected a USB keyboard and tried to illuminate the Caps Lock led. I also have inserted a USB drive with a power led. No luck
I feel like I am missing something simple.
Questions I have:
- Should the blue led illuminate at all, even when a SD card is not present?
- Should at least the USB ports have power when Input Power is applied?
Thank you for any help you can provide
Jeff