BIOS dump for the HP Notebook 15 built on the ASL50 platform with motherboard LA-C921P, stored in a RAR archive of about 5 MB. The LA-xxxxP pattern is Compal numbering, so HP sourced this board from Compal as ODM, and the same number is printed on the PCB near the edge or under the memory slots. Use the image to reprogram the SPI BIOS chip with a CH341A-type or similar programmer when the laptop is dead or will not post. Match the board number exactly, save the original chip contents, and confirm the image size fits the chip before writing.
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 | 15 Aug 2018 | Open file on RM Schematics |
| @abgm_manutencao_bios | 15 Feb 2020 | 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 →