BIOS for an IBM/Lenovo E520 laptop on board 10292-3, with 48.4MI02.021 as the PCB part number, marked OK as a working dump. The 10292 style number belongs to Wistron, the ODM that built this board, and the -3 suffix denotes revision. The 2.11 MB RAR is used to reflash the SPI chip when the notebook stays dark or loops at power-on. Match the board number on the PCB before writing, back up the original chip and verify the image 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 (8)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 12 Sept 2020 | Open file on RM Schematics |
| @laptexdna | 12 Sept 2020 | Open file on RM Schematics |
| @biositechyangiyer | 22 Sept 2020 | Open file on RM Schematics |
| @biositechyangiyer | 5 Oct 2020 | Open file on RM Schematics |
| @one5technology | 25 Nov 2020 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | Open file on RM Schematics |
| @biosdumpcomputer | 26 May 2022 | Open file on RM Schematics |
| @generalschematics | 15 Sept 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 →