Working BIOS for the Lenovo G50-70 with firmware version 9ACN28WW, packed in a zip, and =8= suggesting an 8 MB SPI image. Lenovo version strings ending in WW identify the BIOS release, which can be checked against the original dump. The G50-70 was made on more than one LCFC board, so confirm the NM number on the PCB matches the source. Flash with an external programmer only after reading and saving the original chip, and ensure the chip capacity equals 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 @BiosSchematicWorld. Enginerys does not host this file.
All sources (5)
The same file was posted more than once. If one link is dead, try the next.
| Channel | Posted | |
|---|---|---|
| @BiosSchematicWorld | 3 Jan 2022 | Open file on RM Schematics |
| @BiosSchematicWorld | 3 Jan 2022 | Open file on RM Schematics |
| @pepeelectronica | 24 Apr 2022 | Open file on RM Schematics |
| @schematics_bios | 24 Jul 2026 | Open file on RM Schematics |
| @schematics_bios | 1 Aug 2026 | Open file on RM Schematics |
How to open a .zip file
Compressed archive that every operating system opens without extra software.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →