UM5401QAB make

BIOS .bin 16.0 MB Shared

A 16 MB BIOS binary labelled UM5401QAB, matching an ASUS Zenbook model code, though the name gives no brand or board revision. The word make suggests a prepared or rebuilt image rather than a raw factory read, but the name gives no details of what was changed. A 16 MB file corresponds to a 128 Mbit SPI flash chip. Before programming, check the board markings, save the original contents with your programmer and compare both dumps. Restore any unit-specific data such as the serial number if it was not carried over.

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 @ShareMan_Electronic_Files. Enginerys does not host this file.

How to open a .bin file

A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.

CH341A + NeoProgrammer / AsProgrammerflashromRT809F / RT809HTL866II / T48UEFITool (to inspect)HxD (hex editor)

More about .bin files

Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →

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