BIOS for the ASUS X420FA laptop on motherboard E410MA, revision 3.0, supplied as a 5.91 MB zip. ASUS uses the model code as its board name, and this file pairs the X420FA model with the E410MA board. Confirm the board name and revision R3.0 on the PCB before flashing, since other revisions may need a different image. Read the original SPI chip first to keep serial and system data, then program and verify with a programmer.
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 →