Realtek Audio not working after Bios update

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arunkumar78

arunkumar78

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I updated my PRO B660M-A DDR4 bios from 7D43v1E to 7D43v1F through MSI control center, after that Realtek Audio is not detecting/showing in Windows 11 and Windows 10 dual boot OS. The Audio is enabled in Bios.

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Module Information
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MS-7D43 1.F0
Intel Chipset Drivers 10.1.19376.8374
Realtek PCIE Network Drivers 11.10.0720.2022
Intel Serial IO Driver 30.100.2237.26
Intel ME Drivers 2319.4.30.0
Intel GNA Scoring Accelerator 3.00.00.1457
LED FW Update(7D43) 01

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System Information
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Product Name: PRO B660M-A DDR4
OS: Microsoft Windows 11 Pro 64-bit Ver.2009 (OS build 22631.2715)
BIOS Version: 1.F0
BIOS Release Date: 11/13/2023
CPU: 13th Gen Intel(R) Core(TM) i5-13400F
Memory: 32 GB @
- 16 GB DDR4-3600, G Skill Intl F4-3600C18-16GVK
- 16 GB DDR4-3600, G Skill Intl F4-3600C18-16GVK
Graphics: NVIDIA GeForce GTX 1650 SUPER
Drive: SSD, XPG GAMMIX S70 BLADE, 476.94 GB
Network: Realtek Gaming 2.5GbE Family Controller #2
Network: TP-Link Wireless PCI Express Adapter #2
Power Plan: GUID: 381b4222-f694-41f0-9685-ff5bb260df2e (Balanced)
 
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I flashed the downgrade to 7D43v1E (audio working), then flashed the patch version sent separately and the audio worked, then I flashed the 7D43v1I the audio still worked, and today I flashed the 7D43v1J1(Beta version)
2024-08-16 sound also works. I hope msi finds the error soon and fixes it before things get worse. I use PRO B660M-A DDR4
 
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Reporting my experience which hopefully can help someone else in the same situation or even MSI understand this issue better.

CPU: i5 14600k
MOBO: MPG B760I EDGE WIFI (DDR5)

I purchased this motherboard and initially updated the BIOS using a 12th-gen Intel CPU to version 7D40vA4. I'm not certain what the default BIOS version was.
I've always updated to new BIOS versions as soon as they were released, or within a few days, excluding beta versions. This includes versions 7D40vA5, 7D40vA6, and 7D40vA7. Everything was fine up to version 7D40vA7 until I decided to upgrade to version 7D40vA8, which had the following changelog:

- Modify Audio setting.
  • - Fixed CVE-2024-36877 security issue
Click to expand...

However, this version completely broke the onboard audio card, causing it to disappear from Device Manager with no way to restore it. On a side note, this also resets your Windows PIN (TPM reset) and made me lose my Windows OEM key.

In order to recover the onboard audio card, I had to downgrade to the earliest BIOS release for this motherboard, version 7D40vA0 (don't worry if you have a 14th-gen CPU, you can still boot into BIOS and Windows, though Windows has some funky behaviours). Only version 7D40vA0 restores the audio functionality. Rolling back to any other version between 7D40vA0 and 7D40vA7 from 7D40vA8 did not bring back the onboard audio card.
Upgrading the BIOS incrementally until version 7D40vA7 is necessary to keep the onboard audio working. If I upgraded directly from 7D40vA0 to 7D40vA7, the onboard audio card would break again.

Summary:
- BIOS 7D40vA8 breaks the onboard audio card;
- Downgrading from 7D40vA8 to any version, excluding 7D40vA0 doesn't restore the onboard audio card;
- Downgrading to 7D40vA0 restores the onboard audio card. Incrementally upgrading to 7D40vA7 preserves the audio functionality.
- Directly upgrading from 7D40vA0 to 7D40vA7 breaks the onboard audio card.

I am still waiting for a beta BIOS in private to test further.
 
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Pangolin said:
If you have the exact same problem,
→ Reatek audio not working after BIOS update 600 and 700 series chipset Intel only
Please fill in the form and we will get back to you!!!
<< Here is the form >>
______________________________________________
EDIT
By Alan J T
If you do not have or DO NOT CREATE A USER ACCOUNT WITH MSI,
You will not receive the BIOS file
I WILL NOT BE SUPPLYING BIOS FILES VIA email

Please note we need the serial number on the Motherboard 24Pin connector found here
View attachment 183575
Click to expand...

Form submitted . PRO B760M-P DDR4​

 
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ComputerRepairExper152f02d1 said:
That means the latest BIOS update rewrites OVER the previous one. Whatever hack you are talking about, if you got a bios from some person, there is a high risk that bios has a rootkit,
Click to expand...
YAdd yadda all bios issued to end users by Moderators of this forum are supplied by MSI so no root kits bro
 
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Johnnyy said:
Im very confused?
1. What bios are we talking about? If we are talking about the previous working bios - Who else would try this bios? Its on the website, so I guess everyone? I do not understand the first statement.
2. Ok.
3. Yes the old bios "v7D43v1E" (before APO implementation) does recover the audio. I've done it before, 5 months ago, because MSI is taking forever to fix what they broke.
I do not understand what you mean with "please do not flash to the old BIOS again. Only update to the newest BIOS" ? This seems to be contradicting, please care to explain further.

Edit: Are you talking about a custom bios you send privately? Kindly send me again via PM. Thank you.
Btw just tried the custom bios it did in fact fix audio, put it in the site!
Click to expand...
Hey Johnny. I am just as confused as YOU are! LOL. First off, as a tech of 30 years, I would NEVER trust a bios altered by anyone other than the OEM MSI Taiwan engineers. So here is some lukewarm good news, plus a safe workaround. Yesterday, called and spoke with three techs at MSI USA in California. For a decade, the USA techs were all Taiwan transplants, but now the current techs are young and American born... slightly rude, somewhat overworked and worse... deny there is a problem. We need them so it makes no sense to piss them off, but if I was managing that team, they would all be threatened with looking for new work. That rude experience is a first in the 30 years I have worked with MSI USA. Since I did not trust the general tech support team, I tracked down and spoke by voice with the HEAD customer service rep (Nicholas) in California. He personally accepted my emailed screenshots of the failure of the Realtek drivers, which in the photos are positioned next to screenshots from HW Info that shows the board-bios specs. He is sending that and notes to Taiwan for a hopeful fix, which he said may take a month before they get to it. As far as this crazy fix that Alan JT supposedly created, I find it hard to believe it can work, because in theory, the bios get WIPED when you update the bios, so why would HIS older fix solve the issue? Unless.... ::dramatic pause:: it is some sort of ROOT KIT alteration. Rootkits can create PERMANENT backdoors on your board. Is it worth trusting someone you do not know? The temporary SAFE workaround that no one in this forum is talking about.... is for $10 on Amazon, buy a USB-to-3.5mm dual port audio-mic jack adapter. Finally, the 2nd issue I shared with the team manager is that bios versions seem to be identically named for both the Pro B660m-A DDR4 WiFi and non-WiFi boards. Then last, I explained when I try to do a support ticket, any serial number I add gets rejected. (I have 20 of these boards for our firm.) So the online ticket forms do NOT work for me. Seen complaints about that issue here in the forum, too. At the conclusion of my chat with Nick, he said I can check with him in about 3 weeks. I will post a notice if and when there is a fix for THIS board, namely the Pro B660m-A WiFi DDR4. It should work the same for the non Wifi, but I will NOT put money on that claim. Make sure any board you work on, that you find the receipt of where you bought it, take a snapshot of the serial number (should be on the side of the 24 pin power port) and make sure your board is still under the 3 year warranty... before you try anything... as a bad move can BRICK the entire board.
 
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To keep everyone updated, my motherboard is the MPG B760I EDGE WIFI (DDR5 model) and reverting back to my old BIOS of 7D40vA1 always restores the Realtek Audio Driver. The BIOS Fix provided of 7D40vA81 also keeps the Realtek Audio driver active. Upgrading after the BIOS Fix v81 results in loss of Realtek Audio again. I tried 7D40vA9 and 7D40vAA versions (upgrading from the BIOS Fix to each one individually) and was not able to keep Realtek Audio. Reverting back to old BIOS A1 and the BIOS Fix A81 restores Realtek Audio.
 
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neokirby9153102df said:
To keep everyone updated, my motherboard is the MPG B760I EDGE WIFI (DDR5 model) and reverting back to my old BIOS of 7D40vA1 always restores the Realtek Audio Driver. The BIOS Fix provided of 7D40vA81 also keeps the Realtek Audio driver active. Upgrading after the BIOS Fix v81 results in loss of Realtek Audio again. I tried 7D40vA9 and 7D40vAA versions (upgrading from the BIOS Fix to each one individually) and was not able to keep Realtek Audio. Reverting back to old BIOS A1 and the BIOS Fix A81 restores Realtek Audio.
Click to expand...
Same situation as you, using the provided test bios version Realtek is available, but updating from the test version to any version Realtek always disappears 。。。
 
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ComputerRepairExper152f02d1 said:
Hey Johnny. I am just as confused as YOU are! LOL. First off, as a tech of 30 years, I would NEVER trust a bios altered by anyone other than the OEM MSI Taiwan engineers. So here is some lukewarm good news, plus a safe workaround. Yesterday, called and spoke with three techs at MSI USA in California. For a decade, the USA techs were all Taiwan transplants, but now the current techs are young and American born... slightly rude, somewhat overworked and worse... deny there is a problem. We need them so it makes no sense to piss them off, but if I was managing that team, they would all be threatened with looking for new work. That rude experience is a first in the 30 years I have worked with MSI USA. Since I did not trust the general tech support team, I tracked down and spoke by voice with the HEAD customer service rep (Nicholas) in California. He personally accepted my emailed screenshots of the failure of the Realtek drivers, which in the photos are positioned next to screenshots from HW Info that shows the board-bios specs. He is sending that and notes to Taiwan for a hopeful fix, which he said may take a month before they get to it. As far as this crazy fix that Alan JT supposedly created, I find it hard to believe it can work, because in theory, the bios get WIPED when you update the bios, so why would HIS older fix solve the issue? Unless.... ::dramatic pause:: it is some sort of ROOT KIT alteration. Rootkits can create PERMANENT backdoors on your board. Is it worth trusting someone you do not know? The temporary SAFE workaround that no one in this forum is talking about.... is for $10 on Amazon, buy a USB-to-3.5mm dual port audio-mic jack adapter. Finally, the 2nd issue I shared with the team manager is that bios versions seem to be identically named for both the Pro B660m-A DDR4 WiFi and non-WiFi boards. Then last, I explained when I try to do a support ticket, any serial number I add gets rejected. (I have 20 of these boards for our firm.) So the online ticket forms do NOT work for me. Seen complaints about that issue here in the forum, too. At the conclusion of my chat with Nick, he said I can check with him in about 3 weeks. I will post a notice if and when there is a fix for THIS board, namely the Pro B660m-A WiFi DDR4. It should work the same for the non Wifi, but I will NOT put money on that claim. Make sure any board you work on, that you find the receipt of where you bought it, take a snapshot of the serial number (should be on the side of the 24 pin power port) and make sure your board is still under the 3 year warranty... before you try anything... as a bad move can BRICK the entire board.
Click to expand...
You doing gods work and i agree with you. I thought the same the old bios gets wiped when flashing new one that got me confused in how we need the last working one.

Seems like theres a beta bios now that looks like it fixed the problem not sure, haven't tested it, but according to another forum user from last working to newest (beta) seems to work. (They heard us, thankfully)

Also I m sorry for ur struggles during this process. It is indeed a fact that people are a bit more "cocky" and feels like they are ignorant.

A thank you to Alan on this forum for helping us, I can tell he has a bit over work. Its infact hard to trust specially if you are doing this for work, in downloading a bios from a forum, but in hope i think he is working with the msi team and is not some sinister fix.
 
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Johnnyy said:
You doing gods work and i agree with you. I thought the same the old bios gets wiped when flashing new one that got me confused in how we need the last working one.

Seems like theres a beta bios now that looks like it fixed the problem not sure, haven't tested it, but according to another forum user from last working to newest (beta) seems to work. (They heard us, thankfully)

Also I m sorry for ur struggles during this process. It is indeed a fact that people are a bit more "cocky" and feels like they are ignorant.

A thank you to Alan on this forum for helping us, I can tell he has a bit over work. Its infact hard to trust specially if you are doing this for work, in downloading a bios from a forum, but in hope i think he is working with the msi team and is not some sinister fix.
Click to expand...
Maybe I have another opinion, if the bios that Alan J T sent us was the version with the virus, why would he still advise us to update to the latest official BIOS after updating the version he provided? As we all know, MSI motherboards do erase the old BIOS when updating the BIOS...
 
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Johnnyy said:
You doing gods work and i agree with you. I thought the same the old bios gets wiped when flashing new one that got me confused in how we need the last working one.

Seems like theres a beta bios now that looks like it fixed the problem not sure, haven't tested it, but according to another forum user from last working to newest (beta) seems to work. (They heard us, thankfully)

Also I m sorry for ur struggles during this process. It is indeed a fact that people are a bit more "cocky" and feels like they are ignorant.

A thank you to Alan on this forum for helping us, I can tell he has a bit over work. Its infact hard to trust specially if you are doing this for work, in downloading a bios from a forum, but in hope i think he is working with the msi team and is not some sinister fix.
Click to expand...
By the way, again, after recovering Realtek audio using the test version provided by Alan, updating to the latest version also loses Realtek, so I don't feel that the test version provided to us by Alan is illegal.
 
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Hello Alan J T, I've submitted the form my board is

MPG B760I EDGE WIFI DDR4 I have tried the bios u send me and it is working but after that I try to update to the Microcode 0x129 the audio failed again​

 
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Pangolin said:
If you have the exact same problem,
→ Reatek audio not working after BIOS update 600 and 700 series chipset Intel only
Please fill in the form and we will get back to you!!!
<< Here is the form >>
______________________________________________
EDIT
By Alan J T
If you do not have or DO NOT CREATE A USER ACCOUNT WITH MSI,
You will not receive the BIOS file
I WILL NOT BE SUPPLYING BIOS FILES VIA email

Please note we need the serial number on the Motherboard 24Pin connector found here
View attachment 183575
Click to expand...
Submitted
 
Upvote 0 Downvote
Alan J T said:
YAdd yadda all bios issued to end users by Moderators of this forum are supplied by MSI so no root kits bro
Click to expand...
First of all, I am NOT your bro. Despite you being a moderator, the rude and condescending in the manner in which you are addressing me is NOT that of a true IT professional. For anyone else reading this post, who may not have followed my previous posts... I am reiterating that I spoke by phone to three techs at MSI about the Realtek audio issues on the Pro B660m-A DDR4.. and then afterward, the USA customer service manager. He assured me he is the highest ranking exec for the USA team, shared both phone AND his direct email and said I can check back with him early September. I also find it strange, Alan, maybe even alarming, that no one knew who Alan JT is. I was told by four people at MSI, this was the first time they heard about my Realtek bios issue for this board. And when I said there was a forum thread with at least a hundred posts about the same issue, they were in disbelief until I encouraged them to log in. In summary; all MSI USA team members confirmed there is NO WORKING BIOS SOLUTION for the Realtek Audio problem. In my own testing, I confirmed that after version E, if one exists, it was NOT authored by MSI Taiwan. The manger explained that all bios coding is done at Taiwan HQ. Taiwan now has my snapshots., but I was told it may be weeks before Taiwan can reproduce the bios issue so they can code the fix. The USA manager gave me permission to stay in touch. Of course, I will alert the forum when the patch is published on the drivers page in the bios section. I also insist, Alan, that you do not abuse your privilege as moderator, which might include you blocking or editing my membership.. and if you do, I took snapshots of these conversations and will be back on the phone with the manager in California if that happens.
 
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