# Firmware The file `Archer MR200v1_0.9.1_1.2_up_boot_v004a.0 Build 180502 Rel.53881n.bin` is the firmware used in the process and is used during build and stored here in case that reverting bac kto stock is required. Other files here are stored for achiving purpose - all the files are created against the OpenWRT version of `v19.07.6`.