Firmware package for the Dell XPS 15 L502X, 2.11 MB in 7z format. No motherboard number, revision or BIOS version is included in the name, so open the archive and confirm what kind of image it contains. Such files are used to revive a board with a corrupted BIOS by writing the SPI chip directly with an external programmer and test clip. Read and save the factory contents first, as they hold the service tag and system-specific data, and confirm the image size equals the flash capacity so the write completes correctly.
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 @biosfiles. Enginerys does not host this file.
How to open a .7z file
High-ratio compressed archive, often used for large BIOS collections.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →