k42jr.okok

BIOS .bin 4.00 MB Shared

BIOS image of 4.00 MB for the ASUS K42JR, flagged twice as OK in the name, indicating a dump reported as working. The name gives no board revision or graphics variant, so check the GPU and the PCB revision against other K42JR dumps before choosing this one. The size suits a 32 Mbit SPI flash chip. Use a programmer such as a CH341A or RT809 to write it. Read and save the original chip first so you can revert if the board does not start.

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 @biosbigarchives. 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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