Combined BIOS and EC firmware package for board CIH77S version 1.0, described in the name as fully working. No laptop model is given in this file name, so confirm the CIH77S marking and revision on the PCB before using it. Having the embedded controller firmware alongside the BIOS is helpful when a board shows no power-on or a dead keyboard, since the EC often has its own flash or region. Dump and keep the original contents with a programmer before writing, and make sure each image size matches its target chip.
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 | 2 Sept 2023 | Open file on RM Schematics |
| @generalbios | 12 Oct 2023 | Open file on RM Schematics |
| @generalbios | 15 Oct 2023 | Open file on RM Schematics |
| @generalbios | 19 Oct 2023 | Open file on RM Schematics |
| @generalbios | 26 Oct 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 →