I'ts possible to have on non-flash RouterOS (units non-smips and with more than 32MB of space and without /flash/ folder presence) There's not correlation with RouterOS version, it can be any not before factory RouterOS (software) versionĪfter RouterBOOT 3.42 / RouterOS 6.40.x all BIOS version number change with RouterOS version bundled, also if BIOS is exactly equal from previous version. There's no limit on firmware version, but it can be like factory version and up. fwf files or on bundle with current RouterOS (Upgrade Firmware). The current firmware is the only upgradable to any version with. Is present (and fixed) If the factory version are 6.43.7 and up The Factory can be updated only for special event, like introduction of 'protected routerboot' on previous model, and only on some board. 1) Factory Firmware (BIOS) is physically for recover device booting recovery BIOS, if for some reason main (current) BIOS are corrupted.Ģ) Current Firmware (BIOS) are the version loaded at the boot of RouterBOARD.

Routerboard os