Dell M421 BIOS
File details
| Type | BIOS |
|---|---|
| Brand | Dell |
| Model | M421 |
| Device | Laptop |
| Format | ZIP |
| Size | 1.8 MB |
| Marks | tested by uploader, includes EC firmware |
| Added | March 28, 2022 |
| Updated | |
| Original file name | DELL M421 RDA0R0AMB6D0 AMD WORKING BIOS & EC.zip |
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
BIOS dump for the Dell M421 laptop, delivered as a ZIP archive of about 1.8 MB under the original name DELL M421 RDA0R0AMB6D0 AMD WORKING BIOS & EC.zip. The uploader marks it as tested, and it includes EC/KBC firmware alongside the BIOS image. Technicians use a dump like this to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update, and the EC/KBC firmware is relevant when the embedded controller is involved.
Description generated from the catalog data. ·
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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: Dell M421. 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.