BIOS package covering the Toshiba Satellite L855 and L850 laptops, with the extra token DK1FG whose meaning the name does not explain. The 2.96 MB rar archive likely carries a flash image for one or more SPI chips used on these models. Technicians use it to reprogram the BIOS chip when the laptop powers on without display or is stuck after a bad update. Several board variants exist across this series, so compare the board marking with the dump, back up the original contents first, and check that the file size matches the flash 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.
All sources (7)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 22 Feb 2020 | Open file on RM Schematics |
| @laptexlaptopbios | 9 Jul 2020 | Open file on RM Schematics |
| @one5technology | 21 Nov 2020 | Open file on RM Schematics |
| @pepeelectronica | 27 Apr 2022 | Open file on RM Schematics |
| @skclappybios | 10 Apr 2024 | Open file on RM Schematics |
| @schematics_bios | 27 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 3 Aug 2026 | Open file on RM Schematics |
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 →