Diag_script

Diags image "purple mode" tool done right

Diags

Diags is a diagnostic image that is installed on devices, and is used for testing in factories. It is commonly located in /AppleInternal/Diags/bin/diag.img4 for 64 bit devices, or /AppleInternal/Diags/bin/diag.img3 for 32 bit devices.

• TheAppleWiki

What can it (and usually is) used for is changing SysCFG values (i.e. serial, wmac, bmac)

Okay but there's tons of other tools that do this

Well yeah, but, this tool is:

• MUCH more reliable (doesn't crash randomly leaving you to figure it out on your own)
• can be used on any mac (even linux to an extent)
• Open-source (uses existing OSS tools) and not ofsucated