MacBook Pro/iMac BIOS flashing/dump thru LPC connector

[GIFixed]

I searched the web but could not find any connection diagram telling how to connect LPC / SAM connector on Apple macbooks to read/flash or override the built in flash bios.

The CMIzapper products make use of this connection.

Other ENIT SAM connector, too.

Could anybody nicely explain how to do it my self?

Thanks a lot.

[piernov]

Re: MacBook Pro/iMac BIOS flashing/dump thru LPC connector

Check J6100 on the schematics and find the SPI bus lines.

[GIFixed]

Re: MacBook Pro/iMac BIOS flashing/dump thru LPC connector

Check J6100 on the schematics and find the SPI bus lines.

Thank you piernov for your response.

There are 3 things I would like to learn:

1) With macbook turned off: reading and writing internal flash chip. Which connections should go to which on the programmer. I use TL866II Plus.

2) Thru J6100 connector overriding internal flash chip and booting from external bios chip. Which pin/pins should tell the smc to boot from external bios.

3) Debugging/diagnosis.