BIOS archive labelled for the X43J and the K42JA, with an OK mark that suggests a working dump. The two models share a closely related board, which explains the combined naming. The 1.52 MB RAR needs extracting first. A dump of this kind is written to the SPI flash chip with a programmer to revive a laptop with corrupted firmware. Check the model and revision printed on the mainboard, back up the original chip contents, and make sure the extracted image size matches the installed flash part.
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.
All sources (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 26 Jan 2017 | Open file on RM Schematics |
| @generalbios | 29 Sept 2023 | Open file on RM Schematics |
| @generalbios | 26 Oct 2023 | Open file on RM Schematics |
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →