BIOS and keyboard EC firmware set for a laptop on Wistron board 18748-1, project SABA, Whiskey Lake platform (WHL), with a 4 VRAM tag suggesting a 4 GB graphics variant and 0086B1 a version code. The five-digit dash-number pattern matches Wistron, an ODM building for Dell and others. Both the main SPI BIOS and EC chip can be reprogrammed from it. Back up both chips first, match the board number on the PCB and check each image against its chip size.
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 (3)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 4 Nov 2023 | Open file on RM Schematics |
| @generalbios | 3 Dec 2023 | Open file on RM Schematics |
| @generalbios | 4 Nov 2024 | 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 →