Lenovo B590 BIOS firmware in a 5.16 MB RAR archive, where 20208 most likely refers to the Lenovo machine type. The archive probably holds one or more flash images, so open it and compare the files against the SPI chip on the board. Full dumps go directly onto the chip with a CH341A or similar programmer to recover a bricked laptop. Check the mainboard part number and revision on the PCB, since B590 shipped on different boards, and back up the original contents before erasing.
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 | 26 Jan 2017 | Open file on RM Schematics |
| @generalbios | 29 Sept 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 →