BIOS image archive for the Lenovo B50-80, on Compal mainboard LA-B091P revision 2.0. The trailing B in the name is not explained and may mark a variant or a second dump. The 4.34 MB RAR probably holds a full image for a 32 Mbit SPI chip, possibly with additional files. Technicians write it with an external programmer to revive a board with corrupted firmware. Confirm the LA-B091P number and revision on the PCB, and back up the original chip, which holds serial and licence data, before writing.
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 (2)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @biosarchive | 10 May 2019 | Open file on RM Schematics |
| @IT_SERVICE_WORLD | 28 Oct 2019 | 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 →