Firmware package for the Samsung XE500T1C, labelled William R1.0, where William is probably the board project name and R1.0 its revision. No board number or chip size is given, so the RAR archive of about 2.72 MB should be opened and inspected before use. Samsung project names often appear on the PCB silkscreen next to the BA41 code, which helps confirm a match. Typical use is restoring a corrupted BIOS or EC chip with an SPI programmer; make a full backup read first and verify the image size equals the flash chip capacity.
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 @biosarchive. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →