RPi4 Cannot boot Windows from eMMC on CM4

Still not working on NEC CM4 with version 1.32

Nov 05 '21 08:11 halentech

Hmm, I'm not sure why this would be different from the normal pi4. Have you tried changing the sd controller to the arasan, "Device Manager"->"Raspberry Pi Configuration"->"SD/MMC configuration"->"uSD/eMMC Routing"

Do you have a serial port what does it print during boot?

I assume this is windows doesn't boot, not that uefi doesn't get windows starting...

Nov 13 '21 02:11 jlinton

Those screen I got. Twice blinks green text on top left corner (no photo) and same with arasan or classic settings.

also there I got some bluescreen: interrupted not handled (no photo)

and last image is serial debug. but this LCD NEC has RS232 connector wired inside and it can display on LCD screen. Not wired outside :-(

IMG_20211116_072912531 IMG_20211116_072915742 IMG_20211116_073854630 rpi CM4

Nov 16 '21 06:11 halentech

If you hit esc, do and go into the boot device area, do you see windows listed, how about if you drop to the shell, and start the boot manager directly via bootaa64.efi.

Nov 29 '21 20:11 jlinton