Possibly bricked Bios A on z77 mpower, how to recover?

adam0803

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Froggy Gremlin said:
Now that many motherboards are coming out with a back up bios, many people are asking about how to flash the failed bios. (BIOS A or B)
All you need to do is download the bios you want to flash, then using a fat32 formated usb stick, run the forum bios flashing tool.
>>Use the MSI HQ Forum USB flasher<<
Do not begin this process unless your computer is 100% stable! Many bios failures are due to faulty ram etc, if you corrupt your "good" bios the board is dead!
1.) Remove any overclock you have.
2.) Boot using the working bios, with the memory stick inserted into the usb port.
3.) As soon as the flashing tool screen comes up and you need to input, reach down and switch to the nonworking bios. (DO NOT SWITCH FROM BIOS A TO B UNTIL THE FLASHING TOOL HAS LOADED)
4.) Proceed with FLASH.

I don't see why this method is failing to work. :think:

The parts missing in this tutorial may be the disable of all boot devices after the reboot after the files are loaded on the USB stick, & the USB stick may need a geometry reset using the flash tool's 'Fix My USB Key' feature prior to the loading of the files. Have nothing but the USB Key stick as the 'only' boot device for the flash. After a flash, remove the PSU power cord, remove the battery for awhile, clear CMOS, reset boot order etc., that should do it.
I tried doing this method several times....the update completes and on reboot it goes back into cold boot looping on and off on and off. I don't know what else to do to fix this.
This is what I did.

I created the MSI flashtool setup on my USB fat 32 stick
Followed the tool setup everything was okay.
I rebooted my PC and it boot from my memory stick into the DOS setup
I physically switched my bios chip to the one that is not working
I selected the bios update

Update complete 100%
PC rebooted, bios is STILL broken and bootloops.

:(

Help....I don't know what else to do.
 

flobelix

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What is this? Did the topic look like your topic? Don't hijack other topics! For your own problems open an own: >>Please read and comply with the Forum Rules.<<

So far I split your hijack topic off for a new thread. Follow >>Posting Guide<< for further assistance adding your system details. Waht did you flash and why? Did system work properly before flashing? Does Bios B work?
 

headsmoker

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Hi,

I've exactly same problem, first try to update bios 17.1 to 17.4, in bios with integrated M-flash utility, seems ok success but impossible now to boot on BIOS A, after one second, power shutdown, and try again.
Only BIOS B works well, I managed to update BIOS B with MSI Forum HQ USB flashing tool (good) in 17.4 with a bootable USB key FAT32.

I tried after launched flash utility to commute switch to BIOS A, flashing seems to work, succeful process.

But next boot, same fail (I removed power cable and tried clear CMOS....)

Help us!
 

headsmoker

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Already tried full cmos clear.

I tried also process indicated by french msi support, they think intel ME "firmware" can be corrupted so :

Go to bios with BIOS B (17.4)
switch to bios A (failure)
utilities M-flash and launch update bios and ME with bios 17.4

But system bug at 50% in bios, no action possible screen blocked, when it should begin to flash firmware intel ME after reboot

I loss hope, motherboard 'll return for exchange.... :undecided:
 

xmad

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Read my guide, flash with the forum flash tool and the most recent beta bios. It will flash me as well as bios.

You load the flash program with bios b, then flip the switch, then proceed with flash. Bios "A" will be repaired.

Beta Bios Here:
https://forum-en.msi.com/index.php?topic=161491.0

Repair of corrupted bios guide:
https://forum-en.msi.com/index.php?topic=160450.0
 

headsmoker

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Thanks XMAD,

It works with beta bios 57 integrated on USB flash tool, commute switch bios only when you arrive on red words page(flash tool launched)

Other question, this bios is stable ? (I hope yes) in that case, I 'd update also bios B.


 

xmad

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You can do that if you wish, just turn the computer off, flip the bios switch and flash again. You can also use the Multi bios update in the m-flash section of the bios, but I prefer the manual method.

Don't forget to re-install the me drivers inside windows when you are all done.
 
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