MacBook Pro 13 A1708 820-00875-a

BIOS8 MB

4.9 MB · first posted 2021-06-27 in BIOS Archive

Uploader's description

MacBookPro13,1 - MLL42LL
820-00875-01 BIOS W25Q64FV
820-00875-a

What the file name tells us

Brand	Apple
Model	Apple A1708
Board	820-00875
Revision	A
Kind	BIOS
Format	.zip
Chip size	8 MB
Flash chip	W25Q64FV
Archive size	4.9 MB
First posted	2021-06-27
Channel	BIOS Archive

Parsed automatically from the file name and caption. Always compare the board number with the one printed on your board.

What this kind of file is 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
.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