BIOS firmware archive whose name gives only DS2202 and version 1.1, with no brand, laptop model or chip information. It is a RAR of 5.66 MB, so look at the extracted files to see what they contain and whether any note on the source board is included. Do not flash it until the board label confirms the DS2202 identifier and the image size equals the capacity of the SPI chip. Always dump the original contents with a programmer such as a CH341A first, so you can return to the factory state if the new image fails.
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 @sm_bios. Enginerys does not host this file.
All sources (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @sm_bios | 12 May 2026 | Open file on RM Schematics |
| @smbiossupport | 12 May 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 →