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Downgrade MEI firmware how?

PanosXidis24
Level 9

‎05-17-2022 04:08 AM

Hello guys im on X299 system i need to downgrade MEI firmware like 11.10.0.1287 from the new one!!!how??thanks
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3 REPLIES 3

restsugavan
Level 12

‎05-26-2022 12:24 AM

MEI Firmware always did not affects system performance. It was provide more security and protecting against backdoor or root admin attack via USB ports.

By the way if you want to flash older version of MEI Firmware. You can use this command via FWUpdlcl64 Tools.

C:\> FWUpdlcl64 -F "XXX.BIN" -ALLOWSV then hit enter.

Note :: "XXX.BIN" = your old MEI Firmware binary file.
Microsoft Windows 11 Insider Preview Build 25375.1ZN Intel Core i9 7980XE 2.6 GHz 020006F05 Microcode ASUS RAMPAGE VI EXTREME MODDED BIOS 3701 SAMSUNG ODESSEY G9 FIRMWARE 1017.0 NVIDIA RTX 4090 24GB GDDR6X 256GB GSKILL DDR4 16-18-18-36 3200MHz SAMSUNG EVO 970 PLUS 1 TB x 3 HARMAN JBL 9.1 Sound Bar DOLBY ATMOS 9.1 :cool::cool::cool:
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PanosXidis24
Level 9

‎05-26-2022 12:20 PM

Error 8714: Firmware update not initiated due to file open or read failure
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restsugavan
Level 12
In response to PanosXidis24

‎05-29-2022 08:10 AM

PanosXidis24 wrote:
Error 8714: Firmware update not initiated due to file open or read failure


If the option -ALLOWSV not work. You can try second BIOS option on the last page of BIOS menu.

It may help if your board still had initial BIOS version on it.:o

The ME of second BIOS may still the version that you want. :cool:
Microsoft Windows 11 Insider Preview Build 25375.1ZN Intel Core i9 7980XE 2.6 GHz 020006F05 Microcode ASUS RAMPAGE VI EXTREME MODDED BIOS 3701 SAMSUNG ODESSEY G9 FIRMWARE 1017.0 NVIDIA RTX 4090 24GB GDDR6X 256GB GSKILL DDR4 16-18-18-36 3200MHz SAMSUNG EVO 970 PLUS 1 TB x 3 HARMAN JBL 9.1 Sound Bar DOLBY ATMOS 9.1 :cool::cool::cool:
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