Small 488 KB RAR archive for the HP Compaq 6720s business notebook, with the HSTNN-139C regulatory model code and the reference 25VF080B in the name. The 25VF080B matches an SST 8 Mbit SPI flash part, which suggests the archive holds a 1 MB BIOS dump for that chip. Such an image is written with a hardware programmer to restore a laptop with corrupted firmware. Check the chip marking on the board, read and save its original contents, and confirm the image size fits 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 @BiosSchematicWorld. Enginerys does not host this file.
All sources (10)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @BiosSchematicWorld | 27 Dec 2021 | Open file on RM Schematics |
| @pepeelectronica | 20 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 20 Apr 2022 | Open file on RM Schematics |
| @pepeelectronica | 23 Apr 2022 | Open file on RM Schematics |
| @laptopbios21 | 27 Apr 2023 | Open file on RM Schematics |
| @schematiclaptopramkushwaha | 13 Jul 2025 | Open file on RM Schematics |
| @schematics_bios | 23 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 23 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 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.