BIOS archive for an HP Envy 17 built on Compal board LA-J504P, roughly 7.4 MB as a rar. The name gives no revision, ME status or EC details, so check the extracted contents and their sizes before use. Compal identifies its boards with LA-xxxxP codes printed on the PCB. Technicians program images like this onto the SPI flash chip with a CH341A-type programmer to revive a board after corruption or a failed update. Back up the existing chip first, and make sure the image matches the chip capacity exactly.
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 @sbiosworldchannel. Enginerys does not host this file.
All sources (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @sbiosworldchannel | 17 Feb 2026 | Open file on RM Schematics |
| @skclappybios | 17 Feb 2026 | Open file on RM Schematics |
| @sboisworld | 17 Feb 2026 | Open file on RM Schematics |
| @dtechbios | 17 Feb 2026 | 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 →