09921-3 BIOS Dump
Part of 09921-3
09921-3: 4 BIOS files found in the source channels. The board is used in the Acer Aspire 3820, Acer 3820ZG, Acer Aspire 3820TG and Acer JM31.
BIOS files 4
FileSizeRevAddedSource
Laptops that use 09921-3
- Acer Aspire 3820
- Acer 3820ZG
- Acer Aspire 3820TG
- Acer JM31
- Acer JM31-CP
What these files are for
A BIOS dump is a full image of the board's SPI flash chip. It is written back with an SPI programmer when the original firmware is corrupted, after a chip replacement, or to recover from a failed update. Read and save the original chip first: serial number, DMI data and the Intel ME / AMD PSP state differ between boards.
Tools to open these files
| Format | What it is | Open with |
|---|---|---|
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |
| .bin | BIOS image inside the archive (usually .bin) | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |