A BIOS / firmware dump for Dell hardware (board LA-7781P). Shared as “Dell_Latitude_E6430_QAL80_LA_7781P_U52_&_U53_WORKING_BIOS_100%_telegram.zip” — a .zip file, 6.07 MB.
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_Repair. Enginerys does not host this file.
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Built-in OS tools7-Zip
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →