Hello,

I have a Asus Maximus VIII Hero with a 6700k.

I wanted to downgrade my ME Firmware cause i had strange latency and performance issues. So I unlocked my FD via Efi Boot then setup var. After that i used the FPT to erase the ME Firmware via "fptw64 -me -erase". Then I flashed the desired Bios with the older ME engine Firmware via USB FLASHBACK. But now my system doesnt Boot anymore and i get POST CODE 00. I tryed reflashing different bios versions via USB Flashback but it keeps getting Stuck at post code 00.

Have i successfully bricked my Board or has someone here maybe a solution to get me to POST again?

Help would be awesome. Thanks in advance.

If the Asus BFB feature doesn't solve it, then ur only solution is an SPI programmer, as u dont have post bios anymore.
U used FPT to erase but u should also flashed with FPT as ur bios was already unlocked, ur mistake using FBF for that op...

EDIT: A cheap USB CH341A will do the job, and the task is simple as the spi is socked (Remove to program), near the PCIe 2 slot/CMOS battery.
U can flash the full FPT SPI backup or an extracted Intel_image (With UEFItool remove capsule) of an original CAP from Asus.
If using an original CAP, ur original motherboard (from backup) data must be edited (via HEX editor)/transferred with FD44editor to the new image to program.
Guides on how to use the programmer on the forum.
Ur not the first that needs this... so plenty of user experiencies in the forum regarding this task.

Damn that sucks :/. I never used a Programmer. Do you have a suggestion which one to buy and would i have to solder my BIOS chip off the Board?

Alright, awesome! Thanks for you help and quick reply. I now ordered a Programmer. Glad i made a full SPI dump before :D. I assume i can just flash the whole "SPI.bin" then, am i right?

You can always flash an early BIOS version downloaded from ASUS site, to have the desired ME version. I had similar issues with an older B150 board from ASUS and the guy who re-flashed the BIOS chip using a programmer did not have any SPI dump available.

I guess i will try to flash my Backup and unlock Bios FD again. After that i will try the ME Firmware downgrade via FPT Flash.

Zitat von djdox23 im Beitrag #5610

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Hello! Found this : https://www.station-drivers.com/index.ph...5Mo)/lang,fr-ca
[...]
Is it safe to update to this version ?

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Manufacturing mode is activated on my system. I want to deactivate the manufacturing mode with the command "fptw64 -closemnf". But this command does a global reset.
The "NO" addition will prevent the system from doing a global reset following a successful update of the ME Manufacturing Mode Done.
What is a global reset and what does it do? Do I have to do a global reset after deactivating Manufacturing Mode? Can I also do a global reset manually, e.g. remove the power cable?

Unfortunately no one has replied to my post # 5633. I hope someone can help me with my second concern. I would be very happy.
In manufacturing mode, the safety functions can be set, what the OEM should actually do.
According to MEInfo and fptw64 -fpfs, I can activate and deactivate CPU debugging and BSP initialization.
What do you recommend? Deactivate or activate the two functions? Thank you very much for the help.

Zitat von Fitnesstrainer im Beitrag #5633

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Manufacturing mode is activated on my system. I want to deactivate the manufacturing mode with the command "fptw64 -closemnf". But this command does a global reset.
The "NO" addition will prevent the system from doing a global reset following a successful update of the ME Manufacturing Mode Done.
What is a global reset and what does it do? Do I have to do a global reset after deactivating Manufacturing Mode? Can I also do a global reset manually, e.g. remove the power cable?

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If I open a new bios image in FIT#9 and navigate to Me region -> Integrated clock controller -> power management settings , I can always see some highlighted values. Could anyone say why? What FIT is trying to say? Should I change these values to Enable or leave as is ?

Zitat von klaxklax3 im Beitrag #5636

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If I open a new bios image in FIT#9 and navigate to Me region -> Integrated clock controller -> power management settings , I can always see some highlighted values. Could anyone say why? What FIT is trying to say? Should I change these values to Enable or leave as is ?

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Hi there. I have a P8Z77-V Pro board that shows ME version N/A and some funny system date and time that cannot be set, and I cannot boot into Windows. I suspect ME region is corrupted. I used FTK8 to reflash the entire BIOS successfully and cut off power for 30 seconds as mentioned in another post (can't post the link here because I am new). However it does not solve the problem. Before that I tried to upgrade/reflash/downgrade BIOS using Asus EZ-Flash but also can't solve the problem. Can anyone help to let me know what can I do to update the ME? Thanks a lot.

Clean it: [Guide] Clean Dumped Intel Engine (CS)ME/(CS)TXE Regions with Data Initialization

Zitat von MeatWar im Beitrag #5639

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Clean it: <Link removed>

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