BIOS image for a board labelled MJ401TA, revision R2.1, with firmware version MJ401TA-303, as a binary inside a ZIP of about 5.3 MB. The name does not state the laptop brand, so identify the device from the board marking. Such a dump is written to the SPI flash with a hardware programmer to recover a system with corrupted firmware. Make a backup of the original chip before writing, ensure the extracted binary matches the chip capacity, and verify the PCB revision is 2.1.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →