Hi t4_4t, my Radxa CM3 is not booting from SD with the Radxa CM3 IO Board. We can continue the discussion here CM3 wont boot from MicroSD - ROCK 3 Series / CM3 - Radxa Forum. But I’ve tried holding the golden button while powering the Radxa and nothing happens. The green LED of Radxa CM3 module never flashes green and only the red led near the HDMI connector stais on.
The board that I’ve modified to make the SD working is a Raspberry PI CM4 IO Board, not the Radxa. But on both boards, I am seein the “mmc_host mmc1: Bus speed (slot 0) = 375000Hz” message on the dmesg when I plug the SD card.
But later on, I cannot see any kind of devices on /dev to be mounted as a disk.
Thanks for your help.