ZIP archive of 5.23 MB with BIOS firmware for the Lenovo ThinkPad T420. The token NZ3_SWG_Rev appears to be the board designation with a revision marker. ThinkPad dumps may include separate BIOS and EC images, so check the contents after extraction. Flash the SPI chip with a programmer to fix boot failures or a corrupted image. Back up the original first, because ThinkPad chips hold machine-specific data such as the serial number and UUID, and confirm that each image size matches its chip.
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 | 12 Mar 2017 | Open file on RM Schematics |
| @abgm_manutencao_bios | 8 Aug 2019 | 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 →