Is New ME region necessary?

[macattack600]

Anytime a bios needs to have flash loaded new rom , what happens if the ME region has not been cleaned?

[piernov]

Re: Is New ME region necessary?

ME region needs to be cleaned everytime a BIOS dump is transferred from one board to another, or if PCH is replaced. (that applies to Intel platforms only, and not on Core 2 Duo or older)
ME region is paired to PCH the first time the board is powered on.
Dirty ME region can cause all sort of issues including slow POST and shutdown after 30 minutes.

[stj]

Re: Is New ME region necessary?

or kill it - the "Mossad Region"
https://github.com/corna/me_cleaner/...cleaner-status

[SMDFlea]

Re: Is New ME region necessary?

or kill it - the "Mossad Region"
https://github.com/corna/me_cleaner/...cleaner-status

I have a thinkpad x220 on coreboot and cleaned ME,you can`t do the same ME mod to Macs though ?

[macattack600]

Re: Is New ME region necessary?

ME region needs to be cleaned everytime a BIOS dump is transferred from one board to another, or if PCH is replaced. (that applies to Intel platforms only, and not on Core 2 Duo or older)
ME region is paired to PCH the first time the board is powered on.
Dirty ME region can cause all sort of issues including slow POST and shutdown after 30 minutes.

I've seen your videos online , you do very good work .
I'm going to try to get your process down for the ME Region cleaning .
Thank you very much.

Once a rom file has had its ME Region cleaned ,that saved file can be simply be programmed each time since it has had the file saved with the cleaning, correct? In other words you only have to clean and save the file one time.


What about a the Bios on a external video card ? need MEregion clean too?

[piernov]

Re: Is New ME region necessary?

Yes a clean ME file can be flashed on multiple boards, it is not bound to a specific PCH anymore.

VBIOS on graphics card don't contain ME region, since they don't have an Intel CPU/PCH on it.

[macattack600]

Re: Is New ME region necessary?

What is wrong with just using HxD and write block with New ME ? I like your video online but seems there are easier way?
Is it more reliable your way?

[piernov]

Re: Is New ME region necessary?

This method keeps the configuration set by the manufacturer, rather than replacing it with Intel's default configuration. For more information: https://winraid.level1techs.com/t/gu...lization/31277
Improperly cleaning ME region is known to cause problems in some cases on Macbooks. (there are some reports of webcam not working after cleaning ME region improperly)
Also I don't think messing with a hex editor is easier than clicking a few buttons in Intel FITC…

[macattack600]

Re: Is New ME region necessary?

Do you have to use original bios or can you take chip from other board same model and erase then program with Apple ME FITC , FITC is much better