Two-byte status register record accompanying a dump labelled 820 g1 16, which most likely refers to an HP EliteBook 820 G1, though the name gives nothing more. Flash programmer utilities create such a file next to the main BIN to keep the SPI chip status register contents, such as write-protect and block-lock bits. On its own it holds no BIOS code. Keep it together with the corresponding 2 MB image, and consult it if the chip refuses writes or needs its original protection configuration restored after reprogramming.
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 @biosfilebins. Enginerys does not host this file.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →