DY520 NM-B391 BIOS
File details
| Type | BIOS |
|---|---|
| Board number | NM-B391 |
| Platform | DY520 |
| Board maker (ODM) | Compal |
| Revision | 1.0 |
| Device | Laptop |
| Format | RAR |
| Size | 5 MB |
| Marks | includes EC firmware |
| Added | August 3, 2021 |
| Updated | |
| Original file name | R720 DY520 NM-B391 REV 1.0 BIOS AND KBC.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
This is a BIOS dump for a Compal laptop, board number NM-B391, platform DY520, PCB revision 1.0. The package also includes EC/KBC firmware, so the embedded controller code is supplied alongside the BIOS. Technicians use a BIOS 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 can be useful when the keyboard controller needs restoring. Confirm that the board number and revision match your board before flashing, and save the original chip contents first.
The catalog also lists 1 schematic, 1 boardview file, and 5 BIOS dumps for board NM-B391.
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: DY520 NM-B391. 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.