Firmware image of 4.00 MB in .bin format, labelled only with the number 1420 and a copy suffix, so the exact laptop model and board are not identified by the name. Treat it as a raw SPI flash dump candidate. Before use, open it in a hex editor to look for a BIOS version string or model text, and confirm the 4 MB size matches the flash chip on the board. Always read and save the original chip contents with a programmer such as a CH341A before writing, because a wrong image can leave the machine dead.
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.
How to open a .bin file
A raw, byte-for-byte image of a flash chip: the main BIOS / UEFI, the embedded-controller (EC) firmware, or both.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →