BIOS dump for the Dell Latitude E7250, board code ZBZ0 with Compal number LA-A971P, taken from the chip at location U53. The name lists a 4 MB flash capacity, and the archive is 2.74 MB. LA-xxxxP is the Compal pattern for laptop mainboards built for Dell. Use it to reflash the SPI chip with a programmer when the original firmware is corrupt. Save a copy of the existing chip contents first and make sure the image size equals the 4 MB chip, as a mismatched 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 | 2 Feb 2021 | Open file on RM Schematics |
| @Satale_bios_esquemas_Laptop | 21 Apr 2021 | 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 →