Hey, I just received my home assistant yellow here today,
I then followed the install guide here Home Assistant Yellow Guide
I got the CM4 with internal space. I try to flash the home assistant firmware onto the home assistant yellow the PCB board only starts out solid green and red than the green starts to flash and after some time it’s solid red, I never see the yellow/amber light blinking that is always off have tried the following:
Connect with different Ethernet cables.
Disassemble the kit and resample it to see if the CM4 was mounted incorrectly.
Tried 3 different USB sticks all flashed with the firmware from here Raspberry Pi OS – Raspberry Pi and choosing specific the firmware for home assistant yellow.
Power cycle many times
Tried the reset method on the home assistant yellow both using blue and red button and only the red one