Recent content by chipmunk

Chipmunk USB Tester This is a simple but extremely useful tool for anyone repairing computers and laptops. It has 3 lights showing power and USB activity, and it offers a versatile connection to the GND line of the computer. When repairing an Apple laptop it is important to know if the power...

Encoded in Flash.

You do the backlight in the GMUX or in software?

Use Medusa to clean ME, after that it will work.

Including backlight control in High Sierra?

Much easier with Medusa: http://www.cmizapper.com/products/medusa.html

Remember that this model of Mac ,ini has the dreaded T2 chip...

Not possible till now.

Are you reading by software or straight from the hardware?

Apple ROM Version BIOS ID: MBA81.88Z.F000.B00.1905142221 Model: MBA81 EFI Version: 220.260.171.0.0 Built by: root@pdb165 Date: Tue May 14 22:21:29 2019

Looks authentic to me. How did you get it?

Use 820-00163, it is almost the same.

'.bin' files are what the BIOS is stored in. So the schematics will never be in a bin file, but the dump from the BIOS ROM will be.

You can use the CMIzapper Tiresias if you want to preserve the backlight control in High Sierra: http://www.cmizapper.com/products/tiresias-gpukiller.html To see how to mount: http://www.cmizapper.com/install/tiresias-820-2915.html Advantages are: Easy to mount. No irreversible changes to the...

This is the Firmware for the T2 chip, not the BIOS for the Mac.