BIOS and EC firmware set for a laptop board labelled M10B1 MB with Wistron number 09905-1 and PCB code 48.4GU01.011, reported as working. No laptop brand or model is named, so identify the machine by the board markings instead. Wistron prints numbers like this, plus a 48.xxxxx code, directly on its PCBs. The EC image controls power-on and charging, so both chips matter on a dead unit. Back up the original contents with a programmer and match the image sizes to the chips before flashing.
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 (5)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 31 Jul 2022 | Open file on RM Schematics |
| @Laptopbiossolutions | 20 Sept 2023 | Open file on RM Schematics |
| @Laptopbiossolutions | 20 Sept 2023 | Open file on RM Schematics |
| @Laptopbiossolutions | 20 Sept 2023 | Open file on RM Schematics |
| @Laptopbiossolutions | 20 Sept 2023 | 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 →