Firmware Update for PC Engines APU.1D4
OS: OPNsense 19.1.4-amd64
pkg install -y flashrom
Login with SSH and fetch latest Firmware ROM from https://pcengines.github.io/. Write the ROM. First try without using boardmismatch=force and only use this switch if you get an error and you are sure that you are using a compatible ROM.
root@gw:~ # flashrom -p internal:boardmismatch=force -w apu1_v4.9.0.3.rom -c "MX25L1605A/MX25L1606E/MX25L1608E" flashrom v1.0 on FreeBSD 11.2-RELEASE-p9-HBSD (amd64) flashrom is free software, get the source code at https://flashrom.org Using clock_gettime for delay loops (clk_id: 4, resolution: 70ns). coreboot table found at 0xdffdf000. Found chipset "AMD SB7x0/SB8x0/SB9x0". Enabling flash write... OK. Found Macronix flash chip "MX25L1605A/MX25L1606E/MX25L1608E" (2048 kB, SPI) mapped at physical address 0x00000000ffe00000. This coreboot image (PC Engines:apu1) does not appear to be correct for the detected mainboard (PC Engines:APU). Proceeding anyway because user forced us to. Reading old flash chip contents... done. Erasing and writing flash chip... Erase/write done. Verifying flash... VERIFIED.
Reboot and verify the update.
diff dmidecode.txt dmidecode_new.txt ... 10,11c10,11 < Version: SageBios_PCEngines_APU-45 < Release Date: 04/05/2014 --- > Version: v4.9.0.3 > Release Date: 03/08/2019 20c20 < BIOS Revision: 4.0 --- > BIOS Revision: 4.9 26c26 < Product Name: APU --- > Product Name: apu1 ...