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Flash any / most Asus motherboard Bios in DOS with USB tutorial - Intel & AMD roll back
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- Опубліковано 23 січ 2018
- DOWNLOAD LINK to the files needed:
www.dropbox.co...
drive.google.c...
Asus ROG Forum thread:
rog.asus.com/f...
This is for people that want to rollback their bios but EZ Flash wont let them
Or people that just need a different way to flash their bios on their boards.
Example: you are on bios 1001 then you up date to bios 3401 but you decide you want to go back to 1001 because your system was more stable on 1001 but bios 3401 wont let you go back using the flash tools in the bios or windows.
This method uses a tool called AFUDOS.exe to flash your bios in Dos
First thing to consider make sure u have "American Megatrends Bios"
- To check this in Windows 10 or 8.1 just right-click on the Start button and then choose Run.
- In the Run window or search box, type the following exactly as shown: msinfo32 and push enter or ok
Your System info should pop up and you can see your Bios
2nd thing to consider - THIS IS EASY it may look hard or like alot of steps but its not
Now that you confirmed you have a "American Megatrends Bios" and that its not Brain surgery we can proceed
SOFTWARE and Files that you will need
DOWNLOAD LINK to the files needed:
www.dropbox.co...
drive.google.c...
Files needed and in download
- Rufus Format (aka HP USB Boot Utility)
- AFUDOS.exe (this is software used to flash your bios)
- The files I have included in the "Copy to USB" folder (this is in the download I provide)
- UEFITool.exe (this is to convert your .CAP files to .ROM files)
- And of course your Bios File (this you will need to get from your Motherboards support page this is not included)
- CSM MUST BE ENABLED IN YOUR BIOS IN ORDER FOR THIS TO WORK
- IF YOU HAVE IT DISABLED YOU CAN DISABLE IT AGAIN AFTER YOU FLASH YOUR BIOS
- MAKE SURE YOUR .ROM FILE IS NAMED bios.rom OR IT WONT WORK
- YOU CAN KEEP ON USING THIS USB STICK FOR YOUR MOTHERBOARD OVER AND OVER AGAIN AS LONG AS YOU NAME THE BIOS FILE bios.rom WHEN USING IT WITH THIS USB
my left ear enjoyed this video alot..
So low volume, barely hear anything, had to turn the volume up 3x what i normally have it at.
2 Years later, can confirm.
@@dingledodger5323 yup.. my right ear is.. lonely
The left mono audio is extremely low in volume BUT the easily downloadable files and the information here is Freak'n awesome. Thank you, 'You are definitely a Geek' for the great tutorial !
When trying to apply the old bios (Asus prime x570p, 3001) it says "rom file size does not match existing file" or something like that. I am pretty sure the file is unzipped and extracted as body from uefi tool. :/
Had this problem for about a year and a half. Was so desperate that i even considered purchasing a new pc in order to be able to play games again (had constant blue screens and "heci disabled, proceeding with boot" error at start. I spent 200€ in a technician so that he could get it fixed (unsuccesfully). I didnt have any expectations at all, BUT THIS WORKED!!! Now i no longer have blue screens. Returned to a 2017 older bios version in my X556UJ ASUS laptop, and no more heci disabled error nor blue screens anymore. Also i changed some power settings (i suspect some in game crashing was due to overheating) and havent had any problems since then (GPU usage at energy saving mode, and CPU at 80%). Lowered like 15°C and still can play games properly!. Thanks so much to this video, and hope my comment is useful for someone too. Cheers! :D
My heart was beating 100000000 times per second when I did that
After doing the downgrade on my tuf x470 gaming plus I'm getting black screen and no power on ny jeyboard and mouse. GPU, CPU and All the chasis fans are running. I've tried everything from clearing the cmos battery to reinstalling ram and gpu, tried with 1 stick of ram with every slots still no power on my keyboard and mouse and getting a black screen.
Same. What’s the solution to this?
Same thing with mine, looks like it's bricked the motherboard
Sadly it does not work with the Asus Rog Strix B450-F Gaming II when on latest Bios 4204.
I made progress until in the dos mode but when the utility tries to verify the bios.rom it says "3 - Error: ROM file size does not match existing bios size"
Maybe asus changed something about the size in the latest bios to prevent downgrading :-(
I did every step and the process but after that I reset my PC and got a black screen, Cmos reset not working.
My bios file ended in .412 not.CAP, used said method, and a lot of different errors came up in the UEFITool. didn't want to brick it...
Worked! Rescued my computer from the clutches of ASUS bios 3803. I’d stand you a beer if you were here but it’ll have to be virtual ale 🍺
Nice, glad it worked thanks for the Beer
I assume your on the Asus Prime x370 Pro so what version did you downgrade (moreso upgrade) your BIOS to cause I have no idea what the previously stable version I was on.
TimmyTheDank I think it’s 3404.
My Pc is stuck on a black screen after update. Tried removing CMOS batter, changing display ports and removing drives. Nothing works.
You bricked your motherboard. Happened to me too ended up getting a new motherboard
@@ManualCity It's an ASUS TUF B450 motherboard with Crash Free Bios 3 but still won't ask for new bios ROM.
@@samindaperamuna6392 I have a asus b450-f gaming motherboard but all it would do is be on the black screen but now power my keyboard and my gpu would make a pretty loud noise
@@ManualCity Managed to solve? I have the same situation.
What do you do if it isn't a cap file but a 310. file?
Just rename it to a .CAP file! I'm serious.
I did the exact same methods you did and it even read my usb flash reading. But after 100 percent it gives me an error.
"ROM file size does not match existing BIOS size" and then I normally restart my pc. I need to downgrade my bios. I recently bought a Ga35dx and installed 305 bios for it I want to downgrade to 301 which is not happening.
My motherboard light is not supported in their Armoury crate software which is so damn annoying. Which happened after the recommended bios 305 update. It's so frustrating to see a light not working. It does work only when I turn on my pc and switch it off.
Please help me if there is a solution for this.
"ROM file size does not match existing BIOS size" so DO NOT FLASH
This saved some older computers I built for my family. Acted wonky on newer bios revisions and an older 2202 on their Z170AR motherboards fixed the problem. Thanks for the walkthrough!
This completely bricked my motherboard, using a z390-a prime and have absolutely no way of booting into bios. Have tried unplugging all drives, resetting CMOS, installing bios update to usb and plugging that in but nothing is working. Anyone know what i can do?
I have a blackscreen since i do it...
This works..Thank you. Go ahead and do it.
I built 6 computers (Asus B365 chipset) for a medical practice and updated BIOS. I wanted to downgrade BIOS after complains of highly unstable systems. After following the steps here to downgrade BIOS, everything came back to normal...!
I did exact things showed got to same end but after restart my motherboard is giving orange light and not posting pls help......
This just bricked my board. Your not alone
damn thats not fucking good
F for those that downloaded the wrong bios and bricked their Motherboards
Tweety I think that’s fixable
just happened to me :'(
The Same thing happened to me too, and I was able to fix it.
@@TwcFan how did you fix it?!?!?!
@@RyanNoon333 While your BIOS still working, go to your ASUS EZ Flash 3 Utility and go through your fs hard drive to look for the current BIOS. If you find the current BIOS file, click on it to reinstall it and that's it. If you don't have it on your PC, then download the file off from another PC to your USB. Once you did that, then plug it up to your PC and use it but be very careful while trying to do this or your PC might mess up.
After that i cant boot up nothing is showing up. and my led is orange. i have an asus b450f
B450i itx asus can not boot? Solution? Eeprom?
Shut down your PC and remove the round Motherboard battery. Wait for about 1 min and then put it back. Restart you PC ... Let me know if this works... You will lose all your bios settings but that can be put back.
@@imightbeageek932 Of course I already tried removing the battery, I turn on the pc but it does not show an image, it does not start a post, nor the led post that the board has as a function does not turn on ... what other possible solution XD,: S ... removed the memories and video card and it did not work..other solution
also try asus crashfreebios and it won't start
you were able to solve this problem with the B450F??
i did everything you did, but now my pc wont boot, it shows no image so i cant go into the bios, ive already tried shorting the cmos and it still doesnt work. i think i have to buy a new mobo
how do u fix this
Worst mistake I made was following these instructions. Bricked my Asus board. Nothing but black screen now and unable to POST.
Drew Phillips then you don’t know how to follow instructions. Don’t blame other people for your mistakes
If you're fiddling with BIOS options, unplugging the power cord and crossing the CLRTC jumpers (Clear RTC RAM) is your friend. Your systems aren't likely bricked my friends. Just touch a knife blade or screwdriver to those 2 jumpers. I do it all the time when I'm really messing with stuff like this. In fact, I had to do it to go from 2501 to 1201 with my X470-i.
It happens when there's deeper settings (usually memory timings) that need reset to defaults. You'll also need to do it with AMD systems when you change the CPU fan, or you'll get weird fan speeds, or have it randomly stop completely on you, unless you do it.
Thanks a lot, now pc doesn’t turn on, I still get yellow light. I wish I never did this
Edit: I have sent in my pc for repair 4 weeks ago and I got my pc back a week ago. Everything reset, I lost everything but at least my pc working again. I have learned my lesson, never trust this kind of youtube videos. Everyone seen my comments and still haven’t try bios update. *PLEASE DONT DO THIS. THIS WILL DAMAGE YOUR PC.* Take this advice from someone have tried this
OOOUUUUUU thats not good
you said yellow light? thats either the dram or the cpu bro
@@franciscoflores519 There's nothing wrong with the ram, so it may be wrong with the cpu. Anyway I have sent in my pc for repair last week. I have learned my lesson, never trust this kind of youtube videos.
@@Recce96 any idea how they repaired? Still struggling...
@@TechnoGenuine No idea they fixed my pc somehow but everything reset, I lost everything but at least my pc working again. I’ve learned my lesson tho, I won’t never ever do some random UA-cam tutorial.
I wish i saw this comment earlier dawg 😭😭
I have no signal on my screen after that flash anyone knows what could be wrong?
Tried, I think I bricked my motherboard. Don’t recommend trying this on tuf b450 pro. Just black screen after the process.
Weird...I used this to flash a modified BIOS to a Z270-A Prime and it worked.
@@levi990e they are different boards. It has probably something to do with update to ryzen 5000 not playing nice with rollback
Same happened to me, any update on your b450?
@@anthonylloydcabanatan1325 I sold it for a low price, and bought a b550 instead
I followed every step, and it end sucessufuly. But now my PC doesn't post or shows any image. I'm sure the bios file is the correct one. Any ideas?
i’m having the exact same issue, did you find a solution?
THIS METHOD BRICKED MY VIVOBOOK PRO! DO IT AT YOUR OWN RISK!!!
@A Sparky Guy Nope, BIOS was correct. Even got the same verification that it was "done" as shown at 16:14. Just didn't turn on afterwards. Luckily ASUS replaced the MB even though it was 2 months out of warranty
@A Sparky Guy I tried the CMOS reset method as well, but no go. Oh well, at least ASUS came through for me!
Didn't work for me everything did exactly what's showed and now computer won't post sucks
Great way to brick your mobo.
You are Genius. I did able to roll back from 4801 to 3401 for ROG STRIX B350-F Gaming
What is your CPU?
Just tried this on an asus z490, seemed like everything worked, but after install & reboot, the bios version is still the same?
see thats wtf im saying, looks like it doesnt work for the z-490 still new i guess
You got lucky, man, many here report bricking their motherboards having followed this procedure.
Rom file size does not match existing bios size error message. Help :(
I have the same issue. USB boot starts the process correctly. After "Reading flash" gets to 100%, it gives me the error message about file size does not match bios size. Any ideas?
Hi there. I did the tutorial step by step and i got a succesfull flash. But i choosed a very old version of my mb bios (an asus prime a320m-k) now my System is completely dead. No boot nor signal of life. I think i should have chosen a more up-to-date bios version then my mb wouldnt have bricked
Redownload the BIOS that you had before from a different PC and update the BIOS again from your hard drive or USB on your current PC.
@@TwcFan your answer comes a little bit late (1 year late to be specific). I already threw the mobo to the trash. There was no way it will revive again. But thanks anyway for your answer (i guess), better late than never...
@@demg8410 You're welcome! I also thought my PC was messed up until I found out what the problem was. The BIOS was corrupt, and I was able to fix it.
A lot of the comments seem to be mentioning the fact that this has bricked their motherboard despite following the steps perfectly: please only risk following this tutorial if you can afford to buy a new motherboard in the event of it being bricked.
1:01 i dont have a cab file of bios i download the bios from asus website it is a .329 file i am trying to roolback the bios version
did you find any solution?
My fucking computer doesnt work now, i did everything right and i booted from the drive until everything was done and when it finished i shut down the computer from the power button as there was no other option and voila , it doesnt work now , thanks for nothing
For those who have B560M-A AC or similar, you can downgrade your bios the same way you updated it, just format the usb and put the files from the rar containing your desired bios version, I used ez mode menu from bios menu and worked with no problems, theres also an option that says something like "support rollback", just enable it if its not enabled.
Rollingback solved cpu massive consumption at some games
i have b550 ma, at first i can downgrade it, and then I update it to the latest bios, then I cannot downgrade anymore, some bios prevent user to downgrade the bios once you install it
@Arch_Legion no matter how many times u did and suceed, it doesnt matter, if u didnt touched any "prevented downgrade version" bios u can redo it infinite time, but the point is, i dont know which one is "prevented downgrade version" until I tried it.
It works like a charm for my A320m-k board. I was able to downgrade to the 4207 version of my bios safely.
I would like to add, I will recommend to use the latest version of UEFITool to convert the cap file into rom.
Thanks man, you earned a subscriber.
This actually worked for you?
I have almost the same problem. I have an a10 9700 and the same motherboard, i bought the Ryzen 5 5600g and i cant be able to update my bios to version that works with the ryzen. You follow all the steps? Im scared to break my motherboard
@@leandrowagner2853 it is already bricked, the mobo?
@@ejaraw1882 I didn't try , yet
This doesn't seem to work on an Asus MB if you are trying to roll back the BIOS to earlier versions.
Error: proglem getting flash informstion
After updating my Asus ROG 702VM gaming laptop to bios version 310, it doesn't boot anymore. Can't enable CSM. Did all what you said. I want to go back to bios version 306. Please help
Wow. This bricked my Prime B450, all went good until I restarted the PC, now its just black screen with fan spin at same speed forever..
Same here, it bricked my B450-F too :'(
@@Koldesu yea.. Its shit. Ive ordered tools for physically installing a new bios to the bios chip externally. If you want, you can send your board to me and ill fix yours to. I already have 2 im going to fix. If you pay for shipping and send it, ill fix it for free. And when I send it back it will be good as new.
@@kuvos13 I managed to load a new bios to the chip using a CH341A programmer
@@kuvos13 Wish I would have read the comments first, just bricked my strix b450-f
@@Bandit1978 Yea it sucks
I restarted the PC after the program said that everything is done and I can't boot up my PC :(
Please help, I will pay 💵
did you fix your motherboard?
This instruction helped me update the BIOS on the asus prime a320m-k motherboard. I needed to install a new processor, but the current BIOS version did not support it, and the new BIOS version would not install with the old processor.
yo i was scared to do this after seeing so many negative comments but damn bruh it worked with my Asus Z170-k less gooooo
this almost worked for me! got an error that said " Rom file size does not match existing bios size" any idea what i could do? thanks
Yeah I git the same thing
same here
same, any1 please let us know. how to fix this.
My motherboard is stuck on the dram led after I did everything, what happened?
Wrong bios , or unfinished bios downgrade
This looks like it works but when I go back into bios it's still on the same version I was trying to downgrade from. Any ideas?
Same result for me with ASUS ROG STRIX Z490-G Gaming (Wi-Fi) motherboard. Looks like we were lucky as others reported bricking the MB after following the procedure described in the video.
This used to work but new update of March 2021 causes black screen and it is a permanent damage you will have to buy a new mobo
lol... What update... you are flashing HARDWARE... if your HARDWARE is compatible it will work...
@@imightbeageek932 I have been following this video since 2018 and it works as always however like I mentioned above, newer bios update 3xxx doesn't let you downgrade and if you try you get a black screen. If you got any leads on how I can fix my motherboard, I would be highly appreciate it. Problem: Black Screen, a single beep, rig running normal but no display at all. I have tried plugging the HDMI from GPU to Motherboard as my CPU has integrated graphic but to no avail. Tried RAM method but still useless. Even CMOS method doesn't work. It seems that even recent users are facing the same issue.
Thanks bro, Asus crosshair extreme vi was stonewalling me with ez flash and panel bios.
This worked!
I got an error saying ROM file size does not match existing BIOS size on the black screen, does anyone have any advice?
Did you ever figure it out?
Converted this H87M-Pro/M51AC/DP_MB someone gave me into a standard H87M with this method. Unsure what others are doing to brick their stuff, but this worked like a charm. Cheers, mate.
Man I did what you say and my computer stuck on logo screen it says f2 to bios but nothing happenes please somebody help me I cant afford a new one :(
this should work with a modded bios as well? grabbed mine from aptio v for example afuwin this should still work right?
Does this method works with gigabyte motherboards? I got stuck on the part where i should use UEFITool - the bios downloaded from the Gigabyte page is not a .cap file but an .f3 kind of file...
I am getting error as
Error : Rom file size does not match existing bios size after booting from the pendrive
..... Please help
This is incredible - just saved a server that would crash randomly after about 30 mins with this.
Thank-you for posting this terrific guide! I upgraded my BIOS to 5603 for my Asus B-350F Gaming Motherboard but my Windows started to crash randomly. Downgraded BIOS following this guide through DOS and it worked flawlessly without any problems. Windows is stable now without crashing.
An absolute life saver of a guide. 10/10!
Handy hint have a copy of the cap file on a separate usb formatted in fat32 (use BRenamerl to name it properly). In my case on reboot asus ezflash kicked in and insisted i finish the flash using the cap file. Also the usb that I used for the automatic flash from this video wouldn't be recognised during this ezflash so I had to format that usb on another computer to fat32 and put the cap file on it. Once I did that it was all fine. I was downgrading from 3805 to 1804 on a Z170-P After downgrading I was able to overclock my i5-6600k and memory to xmp again.
Dont work for me. After updating continues in looping to EzFlash. :(
What do i do if it says the rom file isnt big enough?
some1 can help me i have 22 error problem allocating memory
Didn't work on my PRIME Z390M-PLUS
ASUS motherboard.......
Same here. What did you do? Mine is not even booting after resetting CMOS
i did everything you say and pushed restart button and my pc never started again. even didnt show up the bios booting screen what should i do idk im pissed
same. is it fixed? my pc turns on and the rgb is running but my screen is black.
Hi. I did all the steps and they worked until the end, then with ctrl + alt + canc I restarted the pc but it always remained the most updated version of the bios. can you help me? I have an asus prime b360 pluse since I updated the bios version the pc has definitely worsened ... even in idle the cpu temperature fluctuates even 10 ° .. can you help me ?? I would like to return to the 1101 version of the bios ...
I'm on a CH6 and have dealt with a few issues (hopefully all resolved now) and I didn't need this guide, but I seen it along the way and just wanted to say thanks for trying to help people.
hi bro i ve a usb problem it s powering up but no response or data even inbios i cant usb mouse or kb also the front panel is not working
is there any sol ??
It did not work.. If flashed my rom, and now my ASUS P8H61-M motherboard will not boot.. No Bios screen, no nothing.. I cleared the CTLclock, and nothing... BLACK SCREEN.. it did not work.
this program bricked my a320mk, not recommended at all
Same , what can i do now?
It worked with my ASUS Z170i. But be careful, this method may erase your intel ethernet mac address, uuid and serial number of your motherboard. If you wont't back up and then restore it, you may loose your warranty
Worked on my Asus Prime A320M-K Motherboard, after I upgraded to the latest version I my PC went nuts, thanks to your guide I was able to go back to a stable BIOS. Thank you!
Hi there, what version did you flash, and what CPU did you use?
@@maroweenocquia3203 bro this was 4 years ago, I don´t remember what I had for breakfast this morning.
God bless
Excuse me, when it comes to ASUS, the bios file is a .211 extension. How do I go about making it a .rom? Is that a simple renaming of the file, and extension? Please explain, thank you (to anyone)
Thanks for the Video and Files.
Mainboard ROG CROSSHAIR VI HERO EZ Flash Update Version 7201
CPU AMD Ryzen 1800X
This Bios are Crashing in Games.
Upgrade to Bios Version 6401 not possible with EZ Flash and USB BIOS Flashback
The bios was not recognized despite renaming.
With your method I could flash the BIOS.
Has worked very well
Many thanks
bro, you saved my laptop from being bricked. Anyone with an Asus GL502vm, DO NOT UPDATE BIOS to 306!!! Thank you for this guide!!!!
Saved my 4.2Ghz 6400 from being bricked at 2.7ghz after accidentally updating BIOS. A true scholar and a gent!
Flashed z170-e from 3180 back to 0050.
Thank you. I thought I've lost my pc.
Hello sir i have a problem doing this method, I can't boot up my pc after updating my BIOS using this😭
could you solve it?
I don't know other mobo but asus rog strix z 390 f gaming mobo mine is screwed. NO signal goes black screen no way whatever I try.
Thanks for this video would have saved me a bunch of time if i saw this first. Other methods were not that well written and left me confused. I flashed a modded B85M-E bios so i could use a nvme drive and it was painless.
I'm not trying to downgrade BIOS but instead trying to flash the latest BIOS for my G701VI. My battery has failed and of course the EZ Flash won't let me update the BIOS with less than 20% battery so I'm using this method to force things to update. Ran through it all and it acted like it was updating but when I reboot the computer the BIOS version is still the same. Any suggestions? Happy to donate some $$$ if I can get help updating the BIOS with the hope that it also allows the laptop to recognize and actually charge the new battery I bought for it. Otherwise I'll have a G701 that I might make someone a deal on. Haha!
When I upgraded my bios to the 2018 version. My CPU is bottlenecking my GPU. I previously had the 2003 version for my Asus Z170 pro gaming.
Worked for me. Asus z170-p motherboard. Needed to flash back to old bios so i could flash modded bios for blck overclocking i5 6500. Good Job! Thanks!
If your BIOS file doesn't have .cap extension, if it has something like .306 instead of .cap (306 is BIOS version), then you just need to rename it as .cap file and follow the steps in the video. ;)
I tried that (310.), but it still won't let me extract the body.
you just saved me a lot of money. thank you. nice tips
Minlian Naulak Me too. Thanks 🙏 you should be proud of yourself for helping others!
You welcome
Nothing better than the feeling of helping others...
THANKS! I solved the problem using this tutorial on my PRIME A320M-K. It took a bit to start after the upgrade (do not get mad, thats normal).
This actually worked for you?
I have almost the same problem. I have an a10 9700 and the same motherboard, i bought the Ryzen 5 5600g and i cant be able to update my bios to version that works with the ryzen. You follow all the steps? Im scared to break my motherboard
@@leandrowagner2853 as i said, it just took a bit to start, but it works 100%
What if you don't have CSM in bios?
MOTHERBOARD to old
when trying to flash it just says error: problem getting flash information
saved my life, updating a320m-k.
liked and subscribed 😊
how? i cant update my motherboard from 5606 to 5862 , it gives me the "this file is not a bios file" or something like that , i ve the same motherboard
i didnt see the video yet , im gonna try
@@julianDinga video will solve that issue. since its UEFI Bios update. It was my main issue as well
I had a A10-9700, I had to do it to put a Ryzen 7 5700x on it.
@@MiguelDarkTiger i did it, but it went wrong, in the last step when i turned off the pc, now it turns on but the screen is black , and the RGB lights doesnt work, only the yellow light from the motherboard . Im trying to update from a10 9700 to R3 4100 as well
Hi im doing the same thing but with an amd 5 5600g from the same cpu, my pc doesnt boot anymore and it just beeps three times... is it my ram?
Perfectly works with x470-f gaming. Considering what kind of bungler I am, it was pretty scary. But everything works fine again. Thank you so much, man.
Thank you for making my pc dead now
Redownload the BIOS that you had before from a different PC and update
the BIOS again from your hard drive or USB on your current PC.
@@TwcFan I returned somehow to dealer i lied that it was broken lol coz i screwed 1 day after i bought it was asus b450 strix i changed to b450 tomahawk im happy now
@@dardan1a915 Heya I think I know what happened with yours, You used the same older version of UEFITool you probably ignored the different errors messages you would've been getting with the older version of the software compared to what was shown in the video, I can confirm that I downgraded my b350 last night with the newer version of UEFITool A58
But yeah if anything here would brick the computer it'd be the conversion of .CAP to .ROM because that's what your flashing at the end of the day.
I used the newer version of UEFITool simply because the version provided was years older than my motherboard.
Here's my comment I left earlier about my experience
This worked great on my ASUS Prime B350 Plus to get Gen4 PCIe back for my 6800, I used the newest version of UEFItool which I got from there github page, Pretty sure the older version would've created a currupted rom based on the messages it was bringing up with the older version, I did also want to use a newer version of afudos but the autoexec.bat didn't work with the newer version of afudos or maybe that was because I pressed enter on the keyboard selection window that popped up actually, cause each key press is registered too many times.
One thing to note is if that autoexec.bat doesn't work you can't type anything in freedos because its running too fast on my 3900x and each single key press is registered 30-40times so there was no hope in typing the "afudos.exe bios.rom /GAN" command so you need the autoexec.bat to do it for you.
But I can confirm that with the UEFITool NE A58 (alpha 58) from Nov 7 2020 works for the .CAP files for my Asus Prime b350 plus and flashed perfectly twice in freedos with afudos 3.03(2012) from this video
I downgraded from bios 5602 to 5407 then decided to downgrade to the latest version before PCIe Gen4 removeal version 5204 and I can also say that my 6800 is working nicely in Gen4
Again use the latest version of UEFITool to convert to .rom don't want to be using a version of that software if it's YEARS older than your motherboard
Anyway though for my motherboard if you have it I used
Rufus2.18p - same from video
Afudos 3.03(2012) - same from video
autoexec.bat - same from video I've added the text under this from the autoexec.bat if the files go down from the drop box you can copy the text within the " " into notepad and save that as autoexec.bat and make your own.
"@echo off
cls
afudos.exe bios.rom /GAN"
UEFITool NE A58 (alpha 58) from Nov 7 2020 - Different from video, got from the devs github here github.com/LongSoft/UEFITool/releases/tag/A58
extract the head exactly the same as done in the video and that's it.
Hopefully this helps someone else looking to downgrade their prime b350 plus :)
I wouldn't recommend anyone do this unless they absolutely have to, NEED, not WANT. Asus will release an update that fixes your issue, eventually.
For me, it was a want. :) Asus updates on my X470-I board led it to no longer boot with XMP/DOCP settings, so I needed to rollback to 1201. That said, it worked for me, but I pay close attention to details, and have been doing this stuff since 1986.. and I'm a computer programmer myself. What I'd like to know is where you got the /GAN option information? It's not in the AFUDOS documentation.
BuckRogers I’m trying to go back to 1201, but am getting error “rom file size does not match bios”.. did yours work right away?
Thanks for great tutorial :
Now running 9600k on Asus Z270 STRIX F ... AWESOME BRO ..
worked for my asus a320mk with ryzen 3 2200g. holy molly. you just saved my new computer. new bios make may pc go crazy. thanks alot. you deserved more subs!
Man you are awesome!! Works with my Asus ROG x470-F gaming:)
a320m-r все сработало большое спасибо автору, переходил с a6-9500 на 5600x использовал новую версию uefitool с гитхаба
This made my PC no longer output anything to my monitor, literally have to replace my motherboard because of this💀
You sir have just saved a expensive piece of equipment. 👍🏽
Everything worked up until at the end wen u said restart and everything cut on except my screens now I can’t do shit
Yeah that's what happens when your bios is currupted but you won't know until you restart the computer and it tries to read what was written, You probably used the older version of UEFITool provided in the video and ignored the extra warning messages you where getting when you extracted the head.
for anyone reading to get the latest version of UEFITool here's the link to their github page github.com/LongSoft/UEFITool/releases/tag/A58
Also had to turn off secure boot to get freeDOS to load
This helped me! I heave a A320M-K mainboard with A10-9700 and is should support Ryzen 5 4500. But the EasyFlash3 says when teie to flash, this is not a wiled bios file. so this video was my work around!😁
This actually worked for you?
I have almost the same problem. I have an a10 9700 and the same motherboard, i bought the Ryzen 5 5600g and i cant be able to update my bios to version that works with the ryzen. You follow all the steps? Im scared to break my motherboard
@@leandrowagner2853 yes, it worked for me. It is a bit scary, if the process is interrupted the mb is toast, but with a serial programmer it can be saved.
@@biskyb00 thanks I going to try it today
@@leandrowagner2853 worked?
You are the boss!!! ty for this! Finally I can fix te problem with my laptop ASUS X556U. Y donwgrade the bios and finally the laptop run!! Thanks for this job!! You are te best!!
the files is not .cap how'd you do this?