Even though I have already two “bricked” models of this SoC, I am willing to make a third attempt.
By the time I hade purchased my second card, if I remember correctly, the u-boot version on the openbsd miniroot was not compatible (bootable) with the older version of the firmware on the card. Hence my question : supposed this problem will present again, is there a workaround to install (or upgrade to) openbsd's latest version on a freshly purchased Firefly RK3399 ? Maybe there is a firmware I can update on the card that will be compatible with the current openbsd version's u-boot ? Or maybe I should use a different u-boot on the minorootXX.img ? Thank you -- Sylvain Saboua looking for a PDP-11
