BIOS dump for an HP Pavilion DV4 with the WSNU main board, revision 2.1, in a 3.31 MB zip. No BIOS version or flash chip type is mentioned. The board name and revision printed on the PCB should both match before the image is used, as the DV4 came on several designs. Technicians write such firmware to the SPI flash with a programmer to fix no-boot or blank-screen faults caused by corruption. Back up the original chip, which holds unit data, and confirm the image size matches its capacity.
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 @bios_laptop. Enginerys does not host this file.
All sources (5)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @bios_laptop | 15 Jun 2022 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 13 May 2023 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 27 May 2023 | Open file on RM Schematics |
| @laptopbios21 | 2 Dec 2023 | Open file on RM Schematics |
| @ComputerBIOSBinFile | 21 Sept 2025 | Open file on RM Schematics |
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →