Hi, There is this problematic Dell Optiplex 5055 Ryzen BIOS 1.5 version issue <https://www.dell.com/community/en/conversations/optiplex-desktops/optiplex-5...> . When I tied to upgrade the bios with flashrom I get the following error: Found chipset "AMD FP4". Enabling flash write... Disabling write protection of flash addresses from 0xff122000 to 0xff162fff failed. Disabling read protection of flash addresses from 0xff130000 to 0xff18dbff failed. FCH device found but SMBus revision 0x61 does not match known values. Please report this to flashrom@flashrom.org and include this log and the output of lspci -nnvx, thanks!. Attaching Logs. Best Regards Ekart, Laszlo