T420S LSN-3 SWG MB H0226-2 U49 BIOS
File details
| Type | BIOS |
|---|---|
| Format | RAR |
| Size | 5.1 MB |
| Marks | tested by uploader |
| Added | July 31, 2023 |
| Updated | |
| Original file name | T420S LSN-3_SWG_MB_H0226-2 U49 TESTED BIOS OK.rar |
Where to get the file
Opens the matching file on RM Schematics, or its source details if it is not catalogued there yet.
Alternative links
No other copies are known yet.
Description
T420S LSN-3_SWG_MB_H0226-2 U49 TESTED BIOS OK This is a BIOS dump file in RAR format, about 5.1 MB, and the uploader marked it as tested. The original file name points to a ThinkPad T420S, with the board identified as LSN-3_SWG_MB_H0226-2 and U49 appearing in the name. Technicians use a BIOS dump like this to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update. Before flashing, confirm that the board number and revision on your motherboard match the file name, and back up the original chip contents.
Description generated from the catalog data. ·
Questions about this file
How do I flash this BIOS dump?
Write it to the SPI flash chip with a programmer such as the CH341A and a SOIC8 clip. Read and keep the original contents first, and check that the chip size matches the dump.
Will this BIOS work on my board?
Only if the board number and revision match: T420S LSN-3 SWG MB H0226-2 U49. Dumps from a different board or revision can leave the board dead.
What does “clean ME” mean?
The Intel ME region in the dump has been reset, so it can be used on another board of the same model. Keep your original dump and transfer serial numbers if needed.