BIOS dump for the ASUS ExpertBook B5402CB laptop, built on Compal board LA-L862P revision 2.1. The rar archive is 13.7 MB. Compal uses the LA-xxxxP pattern for the boards it makes for ASUS and other brands, so read the number and revision off the PCB first. The typical job is reflashing a corrupted SPI chip with a programmer such as a CH341A. Back up the existing chip before writing, and check that the extracted image size matches the flash chip, since a wrong-sized file will not fit.
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 (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 1 Jan 2024 | Open file on RM Schematics |
| @generalbios | 4 Nov 2024 | 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 →