Firmware for a Wistron board numbered 14269-1 with PCB part code 448.05U04.0011, in a 3.76 MB RAR. The name does not mention a laptop model, so identification relies on matching these numbers to the markings on the motherboard. Wistron uses a five-digit board number with a dash suffix together with 448 or 48 style part codes. Flash it with an SPI programmer for no-power or no-display repairs, after taking a backup of the existing chip and checking that the image size equals its capacity.
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 | 11 Jan 2021 | Open file on RM Schematics |
| @biositechyangiyer | 1 Feb 2021 | 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 →