I just upgraded my APU2C4 from a running opnsense.
Just login to the console, install flashrom, download the firmware and flash it.
On my APU flashrom complained that the board id did not match. You can append ":boardmismatch=force" to the command though. After flashing I did a power reset and everything works fine.
Just login to the console, install flashrom, download the firmware and flash it.
Code Select
pkg install flashrom
curl LINKTOFIRMWARE --output coreboot.rom
flashrom -w coreboot.rom -p internal
On my APU flashrom complained that the board id did not match. You can append ":boardmismatch=force" to the command though. After flashing I did a power reset and everything works fine.