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This tool will allow automated flashing MSI boards
from UEFI Shell.
Do NOT use it on a MSI AMD boards from 3xx boards Series. [like X370/B350]
(its OK to use for X399 AMD models as 3xx exception)
It's OK to use for any other newer than [X370/B350] MSI AMD boards or Intel boards.
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V1.13 Add extra support for ME FW Update for all MSI Z490 Series:
MPG Z490 CARBON EK X
MEG Z490 UNIFY
MEG Z490I UNIFY
MPG Z490 GAMING CARBON WIFI
MPG Z490 GAMING EDGE WIFI
MPG Z490 GAMING PLUS
MAG Z490 TOMAHAWK
MEG Z490 GODLIKE
MEG Z490 ACE
MPG Z490M GAMING EDGE WIFI
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How to use:
Prepare an USB key and format it in FAT32
Download the tool from the link:
Forum UEFI Shell Flash tool [V1.26]
Short guide for now:
1. Run UEFI_Flash_Tool_Installer.exe
2. Select your MSI BIOS File ["Load MSI BIOS File]
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3. Select your USB key drive [from drop down menu, if the USB key is not listed click "Refresh" button]
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4. Click "Create USB Flash key" and wait to finish.
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Next reboot computer,
and ensure in BIOS Setup:
UEFI Boot is allowed,
and Secure Boot disabled.
After exit from BIOS Setup while computer is booting:
You can press F11 during BIOS post/logo screen, then when BBS popup after a while,
choose the prepared USB key with UEFI in front as name.
i.e: choose to boot from:
USB your drive
then wait, and you will see the BIOS version shown that is going to be flashed.
and you can press a key to proceed with flashing.
If you don't want to proceed with flashing,
you can press "q" to abort at that point.
when flashing starts,
wait patiently to finish,
ensure successfully message on the screen then reboot or power off the computer.
Optional feature: [Patch AMD BIOS for CP_Flash]
This will allow cross-platform flashing to 32MB BIOS from 16MB BIOS for boards with 256Mbit BIOS chip.
The tool will auto detect if the BIOS support such feature and then will Enable that option.
[in a case when board was flashed to the wrong BIOS to help, restore correct BIOS]
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Or use special version
for Blind Flashing only
(It's useful when need to flash BIOS without display [but the PC can still boot and works fine] and performs auto flashing)
For Blind Flashing only: Forum UEFI Shell Flash tool [V1.26]
Short instructions for for Blind Flashing
[prepare the USB key for flashing,[use the same steps to prepare it as above] then shutdown the PC,
and disconnect temporary any other storages except that USB key that will be used for flashing]
Then turn on PC and wait auto flashing to start and finish automatically.
[when blind flashing is complete the PC will auto shutdown,
then you can remove the USB key and reconnect the rest of your storages and turn it on]
Note1: Be sure to place only one BIOS file on the USB key at the time, before proceed with flashing.
Note2: Due BIOS flashing nature, (which consider every flashing as potential dangerous)
Flash and use at own risk as usual.
Note3: You can use it to downgrade the BIOS too.
Note4: You can cross-platform flash back to correct BIOS 32MB bios. (if the board been flashed to the wrong BIOS by mistake)
EDIT: A video how to use guide made by user efmled: