Backup read of the BIOS chip at position U52 on Compal board LA-7901P revision 1.0, saved as a 5.53 MB RAR archive; the name does not mention the laptop model. LA-7901P is the Compal board used in the Dell Latitude E5430, though only the board code is stated here. Knowing the reference designator U52 helps locate the correct SPI chip on the PCB before clipping a programmer onto it. Because this is a backup from a specific unit, it may carry that machine's service tag and ME state, so clean or adjust it as needed.
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 | 1 Mar 2019 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 28 Oct 2019 | 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 →