I received a Home assistant yellow kit with power supply and PiCM4. I assembled as per instructions, configured a usb drive with install software. Connected to power, and nothing happened, no LEDs lighting up. Checked the power supply but that is fine, delivering power to the pcb. After a while I just feel the PiCM4 get warm/hot. I already tried remounting the PiCM4 module several times, but still no joy. Anybody any ideas or suggestions what could be wrong?
Check jumpers on the board. USB-C Recovery is not strapped?
Are you sure the emmc 4 is mounted correctly?
USB-C recovery is a pushbutton, so no this is not strapped. emmc 4 board is correctly placed. I even reseated it a couple of times, with the same result.
You need to determine which part is bad, the main yellow board or the emmc4. That can only be done by swapping one of them out with another.
Or RMA those back as being bad.