I've got the same issue, updated to latest Bullseye Armbian on my HC4 and now 3.5 inch disks don't spin up. I've tried an alternative 15V PSU, older versions of Armbian, and even put petitboot back on and installed the version of Debian recommended by Hardkernel, but get nothing from my disks. (dmesg shows "ata1: SATA link down" and "ata2: SATA link down") My disks are a pair of 4TB WD green hdds, which work fine when installed in a PC, so it looks like I have the same issue. There's no visible damage to the PCB, but I haven't checked whether the 12v line is dead yet....
