Toshiba Satellite C850 BIOS firmware for the PLF, PLR, CSF and CSR mainboard family, revision 2.1, in the DSC configuration, meaning a board with discrete graphics. The RAR archive is 968 KB. It is meant for reflashing the SPI chip on boards that show no image or fail to boot after corruption. Do not mix it with UMA images, since discrete and integrated graphics boards use different firmware. Check rev 2.1 on the PCB, back up the original chip and compare chip size 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 @biosarchive. Enginerys does not host this file.
All sources (4)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 30 Jan 2018 | Open file on RM Schematics |
| @abgm_manutencao_bios | 8 Aug 2019 | Open file on RM Schematics |
| @biositechyangiyer | 19 May 2020 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | 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 →