NM-B501 BIOS
File details
| Type | BIOS |
|---|---|
| Board number | NM-B501 |
| Board maker (ODM) | Compal |
| Device | Laptop |
| Format | RAR |
| Size | 0.8 MB |
| Marks | tested by uploader |
| Added | August 3, 2022 |
| Updated | |
| Original file name | T490 NM-B501 TYPEC WORKING BIOS 100%.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
BIOS dump for a laptop with board number NM-B501, made by Compal. The uploader marked it as tested, and the original file name refers to a T490 and a working BIOS, though the facts do not confirm the exact model list beyond that. A BIOS dump is used 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 own board match, and read and save the original chip contents as a backup. The archive is a RAR file of about 0.8 MB.
For board NM-B501 the catalog also has 2 schematics, 1 boardview file, and 6 BIOS dumps.
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: NM-B501. 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.