Binary BIOS dump of 8.00 MB labelled with the model number 8440 plus an unexplained suffix, usoo, whose meaning the name does not reveal. No board number, revision or firmware version is given. An image like this is normally written to the SPI flash chip with a hardware programmer such as a CH341A when a notebook will not power on or fails after a bad update. Read and save the original chip contents first, confirm the chip is 8 MB (64 Mbit), and check the model and board on the machine before writing.
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 →