820-2850 BIOS Bin 4MB
Part of 820-2850
820-2850: 6 BIOS files found in the source channels. The board is used in the Apple A1286 and Apple A1236. Image size: 4 MB. 1 has a cleaned Intel ME region. Board revisions: A.
BIOS files 6
FileSizeRevAddedSource
Laptops that use 820-2850
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 |
|---|---|---|
| .bin | raw SPI flash image | a CH341A, XGecu T48 / TL866II Plus or RT809H programmer |
| .rar | RAR archive | 7-Zip or WinRAR |
| .zip | ZIP archive | 7-Zip, WinRAR or the built-in Windows extractor |