From Halopedia, the Halo wiki

The MJOLNIR GEN3 BIOS or Basic Input/Output System is a firmware interface for the MJOLNIR Powered Assault Armor [GEN3].


This firmware succeeds the MJOLNIR GEN2 BIOS for the previous MJOLNIR [GEN2] armor.

The GEN3 BIOS is firmware, designed to be the first code run by the MJOLNIR armor when activated. The initial function of the BIOS is to identify, test, and initialize system devices such as the heads-up display, energy shield systems and other hardware.

The BIOS handles most of the MJOLNIR's software functions when initiated. Updates to the BIOS allows newer hardware to be supported and function. Unlike GEN2 BIOS, GEN3 BIOS is only visible when the armor starts up.

BIOS versions[edit]

  • John-117's GEN3: ARMOR BIOS // MJOLNIR // VER_12.22.19 / ID_117[1]

This BIOS is used by John-117 by 2560.[2]

List of appearances[edit]