🇬🇧 CH341a - minimal usage guide | how to read & write a motherboard BIOS

[@SamuelIshida]

I bricked my x99 mobo trying to unlock the bios... Bought a ch341a programmer and followed this video, now my mobo works fine again! Thank you very much!

[@Miyconst]

Thanks for the support 🙂.

[@elsakralice402]

That's clearly best guide for me. My Hp 7200 MT workstation's bios had corrupted. I tried many ways to fix it, but failed. Finally, without desoldering, i followed your guide and made all steps. Your guide brought it back to life:) I appreciated. Thank you so much.

[@kingacastus8915]

This video is going to help a lot of people, thank you for making it!

[@kardinalacc]

It saved my x79 motherboard from trash bin. Really helpful video.

[@jadielemmanuel5514]

i guess Im asking randomly but does any of you know of a method to log back into an instagram account..? I was stupid lost the password. I appreciate any tips you can offer me

[@TeeeTooo2008]

if everyone know how to explain like you no one will get lost ever. thanks a lot .

[@dylangarmon8683]

Phil's computer lab mentioned you today! Hell yes, your channel deserves so many more followers. Such great content.

[@Miyconst]

Thank you for the support!

[@JohnS-bi8ct]

Clear and concise instructions. Really easy to understand. Made flashing my ROM easy. Thank you so much.

[@rikromero1]

Thanks for your work. It’s easy to see the love that you have for technology, and for sharing it. You are helping a lot of people ^^ I hope it returns double as you give. Have a nice weekend :) and keep doing that you love, you are doing great 🙌✨😁

[@Miyconst]

Thank you Ricardo!

[@PauldeVries]

I found a non working s400ca Asus Zenbook. that wil live another day thanks to this guide. Thank you very much!

[@jonathanwade8313]

this is gonna be really handy with secure boot bricking everyone's gigabyte motherboards when they're trying to install windows 11

[@ULTRAJSK]

This has just happened to me

[@CisumAPRAT]

@@ULTRAJSKand to me 😂

[@MrMalam1234]

​@@CisumAPRAT What happened??

[@CisumAPRAT]

⁠@@MrMalam1234bricked the bios on my gigabyte b450m ds3h while trying to enable secure boot for win 11, because i kept going fast in the bios menu 😂, but i reflashed the bios with the ch341a and everything is perfect 👌

[@bitelaserkhalif]

This item is helping me with badly modified bios. I tried to change the logo of Asrock G41M-VS3. Didn't boot afterwards but I flashed it using file from official asrock site. It worked again.

[@BD-Daddy]

Absolutely amazing instructions and work you do for us! Thank you my friend! A life saver you are.

[@GAMMAXII]

This guide saved my B450i Strix, only thing I did differently was that I used Neoprogrammer.

[@cafam3889]

Hey man! I've brick my b450i strix can you help me bringing back to life by telling me everything you did ? Thanks in advance

[@armanshaghi]

This is a guide on to how to create an excellent, clear guide. Legend ❤️🙏

[@AJDOLDCHANNELARCHIVE]

Heads-up for those wanting to flash a bricked old X58 motherboard (Gigabyte X58A UDR3 Rev 2.0 here), I had no luck using AsProgrammer1.4.1, but was able to successfully flash my BIOS chip using CH14AProgrammer ver. 1.1.1.3.2.

[@Miyconst]

Thanks for sharing the info.

[@AJDOLDCHANNELARCHIVE]

@@Miyconst No problem. Ironically this was an Aliexpress refurbished board that the seller explicitly stated on the listing "Updated to the latest BIOS for maximum CPU compatibility"... didn't POST or put out any signal at all, tried absolutely everything you could think of... eventually I decided I may as well get a BIOS Flash Programmer tool as a last resort (return period had already passed before I tested the board as it looked very clean and like new) as I suspected the seller did not actually update the BIOS which would prevent my Xeon X5675 from being recognised... and what do you know... as soon as I flashed the BIOS the system worked perfectly haha... I think the lesson to be learnt is do not trust Aliexpress sellers to always be honest.

[@metallurgico]

Complete and clear video with all the information needed and no other crap. Thank you very much

[@truongmanhchien1399]

Your channel deserves more subscriptions. Hope you will make many useful videos about computer engineering!

[@jtadevich]

Another satisfied customer. With this vid and others, I was able to un-brick an asrock a320m mother board that I was trying to update normally for a ryzen 5700g.

[@Miyconst]

I am glad to help. 🙂

[@apondo100]

Wow. This is an incredible resource. I cannot put into words how thankful I am! :)

[@PiyushanTechTips]

Man i really appreciate what you doing. I studying those things and this is really good , short and simple explanation. Much appreciated and good luck to you ❤❤

[@Interactivprimar2]

You skipped one step, before starting to work with AsProgrammer, need to install CH341A drivers on PC, where u configuring new bios. Thanks for your vid, very helpful!

[@MrMalam1234]

True, I spent hours looking only to discover Windows update can download driver (under advanced options)

[@zcut3dorders947]

I am going to try flash my z170 pro gaming bios chip tomorrow. Using your tutorial hope the programmer i get is not faulty.

[@Miyconst]

Good luck with the project!

[@nbflyingfox4672]

Excellently presented video for peeps like me who need to be talked through each phase to complete the job. I will add to this comment when my USB Flash Programmer arrives. Once again thanks for a complete tutorial for this process.

[@DarkyBoy]

Did it arrive?

[@nbflyingfox4672]

Yes it did and it enabled me to restore the chip that I have.

[@Rudyworld]

How do you know what series of chip you have? Since 2300 and 2400 go on different sides of the programmer. Did this work for you?

[@nbflyingfox4672]

By searching for the instructions for my programmer

[@gerritsx9]

Glad to have made it here. This is the advanced internet user type video ☻

[@thaddeus2447]

Been waiting for this, thank u!

[@Dullahan_1]

Managed to save my board ,thanks.

[@holamiro]

thank you very much, I admire your work you know a lot about computers, I was able to recover the bios of my motherboard thanks to you!

[@Startekselva]

i been searching for this video good job man

[@wood6454]

Mr Miyconst thank you for saving my ass again with this guide. I had a little trouble as usual but I did it!

[@Miyconst]

Good job figuring things out!

[@glazed6098]

Thank you for this video I managed to save my Z170 pro gaming mother board with this device and tutorial

[@igrewold]

Good tutorial However, to clear CMOS you just use the jumper as indicated on the motherboard OR you remove the battery but not BOTH. The program FLASHROM can be used from the command line, it does use CH341A as an option Good luck

[@nilatenerifecat8314]

thanks so much for this video. Helped me to update bios after black screen after undervolting on Gigabyte g5 kc. I did not believe it, until i saw first message on screen. But I had interesting problem, that it could not connect with usb3, but it worked with usb 2 connector ...

[@Miyconst]

Your USB 3.0 port might be implemented through an external controller which does not provide enough power. Good job reviving your motherboard!

[@Chubbable]

Thanks to your video howto guide! I was able to flash my old x58ud3r mobo. Unfortunately, it did not fixed the constant reboot issue.

[@Netieb]

Thx for the PSU trick helped me a lot

[@k98k007]

Thanks man!!!!! Im only here to watch how to program but also great video! Too useful for those that bricked his bios (srry for my English)

[@venomouswitcher314]

This channel is a gem!

[@Miyconst]

Thanks!

[@mingosutu]

I have corrupted my laptop bios because of this video. You will have to send me a new one. Lol. Thanks a lot.

[@Miyconst]

🤣

[@vikki399]

These instructions are perfect. Thank you so much.

[@TranceJay]

Most new chinese motherboard come with Winbond 25Q128JVSQ. What program do you use to flash it, because even CH341A 1.40 does not have that bios model listed.

[@Miyconst]

As far as I know it's compatible with the Winbond W25Q128BV, at least I always select this option from the pop up window and it works.

[@robertomiguelbrito478]

Muchas gracias por tan valioso material, sos un capo!!

[@mahmoudawd7846]

Ima download it thanks for sharing!!

[@Martin-ot7xj]

Hi there , it was one of your best tutorial video . it was awesome and perfect and informative tutorial video . keep it up . thnx

[@kingkaboodles3817]

Thank You for the awesome tutorial! 👍🏼👍🏼👍🏼

As always, everything is super. Waiting for new cheats from your side

[@lnear619]

Thank for your explanation!!! It's so helpful

[@farawaythrower]

Thank you man, your videos are really helpful

[@cali_cal]

very nice this gives me little confident

[@swamp4711]

Thank you realy needed this video

[@saiprasad8078]

Golden channel--- nice content-- subbed immediately 💯

[@Goobicon4507]

Thank you! Very well made!

[@francescovolpini]

hey! Phil's Computer Lab made a vid about x99. he mentioned you 'cause of your unlock turbo boost vid! :)

[@Miyconst]

That's nice. Could you please link me the video?

[@francescovolpini]

whoops, confused his name with Tech by Matt's. lol! kzbin.info/www/bejne/nqG4dXqaedZnjLM here's the vid

[@Shwez88]

This is a great tutorial that explained things well enough that my monkey brain could follow it. Thanks!

[@zauq5010]

Can CH341A write the bios on the following chip 'Winbond 25X/Q Series'??

[@Miyconst]

Yes, as far as I know.

[@YellowPurple]

❤️❤️❤️

[@Martin-ot7xj]

Hi there, what is the difference between 24x and 25x on CH341A programmer? thnx

[@ctiborkoza8944]

many thanks for the great video helped me thank you very much

[@julian.morgan]

Thanks - managed to restore a functional BIOS to an otherwise bricked motherboard because of this video. FYI the ASprogrammer software had some pretty serious graphics distortions on my display, but functionally it worked perfectly even so- might be reassuring for others to know. Thanks again

[@d11k4facts5]

Hi, I have a question. Maxsun b450m challenger is supports Ryzen 7 1700 but , in product page it says it requires different bios for that . But in the official website Ryzen 1000-5000 series requires *B1* bios . I don't if it has the latest bios then I put a Ryzen 7 1700 is that going to work.

[@Miyconst]

Each motherboard has its own BIOS with a list of supported CPUs. If the seller says that you need another BIOS for R7 1700 then most likely it's true.

[@d11k4facts5]

@@Miyconst seller said latest bios supports Ryzen 7 1700 . But the product description that need different bios. Can I buy it

[@Miyconst]

Take screenshots of the conversation with the seller and if the motherboard doesn't work with R7 1700 - demand compensation or return the motherboard. I cannot guarantee you anything, it's not me who sells the motherboard and it's not me who writes the description page. 😃

[@sachinanand906]

Love you bro it was very much usefull

[@ASXTech]

Thank you very much brother

[@danyferdinend]

A very useful video... Thanks alot

[@secretary1653]

The Surfaces from Micro Soft are seal units with no coin batteries in them. The one I have just might have a SSD that can be remove or not. Think of Surface screen that sits on top of a battery and a Mother Board. No moving parts (maybe a fan) the screen is glue down. The BIOS lock is separated from the regular password.

[@Miyconst]

Then I am afraid you need to bring the device to a workshop.

[@LastDollie]

Do you need to install drivers for the CH341A programmer?

[@Miyconst]

Nope. It works as is.

[@LastDollie]

@@Miyconst Oh, mine doesn't work. It says Check Settings in AsProgrammer

[@Miyconst]

I need more info about your setup and the error to be able to help.

[@waleedcj991]

@@Miyconst i have the same issue it says "error connecting CH341(-1)" and there is a yellow light instead of green and it seems to dim when i connect it to the bios CHIP

[@Miyconst]

@@waleedcj991 You have either connected something wrong or there is not enough power in your USB ports to power up the programmer and the BIOS chip.

[@JacksonDanrleiBalbinot]

thank you! great video

[@dakata2416]

Thanks alot!

[@Martin-ot7xj]

Hi there , it was great thankyou

[@WildBoban]

Found this tool on my nightstand not knowing wtf it was. :D

[@computersrepaircotesaint-l7407]

Great video thanks

[@SatyabratSwain1]

Thanks a lot ❤️

[@aventurero_2399]

Esperemos que este video me funcione mas adelante saludos bro ;)

[@Denoan666]

Hi!! I have a Sager NP9870 (Clevo P80DM-G). When I bought it, years ago, it came with just one GTX 980M. So now I bought another GTX 980M in order to make them SLI. I asked for them to send it with 1617 ID but they sent me with 13D7 ID. So I couldn’t flash it right with the vbios from the older one using Nvflash. I forced with the Nvflash mismatch version and the bios chip got really messed up. So I bought spares from the same chip (MX25L2006EZNI - 12G) and spare one from the older plate (25Q20BT) and ended up dessoldering the chip from the new one and putting a 25Q20BT in the place (with the vbios from the older one flashed inside using CH341A SPI flasher). When the new 980M arrived, the notebook didn’t even started if I put it in the master slot. Now with this modification, it goes to the windows all right but I don’t get image (not even through HDMI). So the idea here is to have both cards with the same vbios and ID in order to make them SLI. The notebook bios recognize both cards but the windows just the older one (with the 1617 ID). What can I do to make this work as SLI? I have my notebook with windows 10, both cards (the 1617 one is already inside of course), SLI cable, both heatsinks and even that cooper plate that was hard to find (I have the two necessary units). I have the CH341A SPI flasher and adapters to use the right voltage. And I have a couple units from both chips (MX25L2006EZNI - 12G and 25Q20BT. The 25Q20BT is so much easier to solder and it is the same model that the older plate uses. And I tried a lot of the drivers version from Nvidia and nothing, even cleaning with DDU. Would you help me to make it work? Appreciate it and thanks in advance. I really hope you can guide me to get there and I don’t think I’m that far away!!

[@Miyconst]

I am sorry to disappoint, but I can't be of any help here. These notebook Nvidia GPUs are complete miseries to me.

[@Denoan666]

@@Miyconst I tried to find information on how to make the new one have the same ID from the older one so the drivers and G sync work all right eventually. No success so far.

[@ldee247]

Hi, great video tutorial with amazing tips and helpful information, well explained easy to follow and understand. I need to try this on my Lenovo t460s, do I need to remove the cmos battery during the process or it’s just the 2 main laptop batteries inside? Thanks in advance.

[@Miyconst]

I would suggest to remove both batteries just to be safe.

[@anarchy_79]

Thanks!

[@TrustNo1sz]

Great precise video. Clear most of my doubts. What about the 3.3/5.0 volts issue/mod I have been reading about?

[@Miyconst]

I suggest you to buy the new updated version of CH341a that has a voltage switch, no mods are needed in that case.

[@micnolmadtube]

Where is the docu for the jumper switch and pin row ?

[@Matt-pj9dg]

Awesome tutorial mate. I'll have to try it when I get my ch341a. Only on question the ch341a is 3.3v and the datasheet from the eeprom chip says it needs 1.8v so I also ordered a adapter for 1.8v but I don't know how to connect it.

[@Miyconst]

Install the adapter into CH341A and the BIOS connecting clip into the adapter, it's simple 🙂.

[@juangomez-ze6km]

hola. intente todo y no me reconoce el chip. ademas , al conectar el programador pone el display FF y hace un pitido(ruido) muy fuerte. que podria ser? placa huananzhi x79 2.49, v3.1

[@And10686]

i watched another guide video about flashing bios with the ch341a and in the case of a soldered chip that requires the ch341a to clamp on the chip directly he said that we should remove all power connectors off the motherboard also remove the cmos battery , he said no electricity should run through the motherboard during the flashing

[@Miyconst]

That's the ideal condition, but since the BIOS chip soldered on the motherboard is attached to another components, your programmer's power might be not enough to read-write the chip. Thus the extra PSU power might be required.

[@mengshilim7364]

This is great. Can do a video of the rig frame you have. It looks interesting. How to DIY it?

[@Miyconst]

Here is a short video about my test bench (frame): kzbin.info/www/bejne/aXaakqCioNarndU

[@Zack_berret]

my chip is 32 mb but the bios i downloaded from the gigabite website is only 1.41 mb, i cant find the correct bios for GA-78LMT-USB3

[@intolko]

I got my X99-TF bricked and with this tutorial I was able to fix it, than you Myconst!!! By the way, is there any place to learn in detail the different versions of the BIOS inside your tool? Having the CH341a here, makes me want to make some test but I would like to know what is the difference between one and another.

[@Miyconst]

Mi899 has a description for every BIOS option. You can launch the app and pick the BIOS you want. Beware: multiple BIOS flash with CH341A may break the BIOS chip or its legs.

[@denzil11975]

Hi Marlon, I have a laptop that is bricked. I need to get a .bin file to use with ch341a. any idea on how to convert .exe file to .bin file for flashing?

[@intolko]

@@denzil11975 Did you try to extract it using 7-zip?

[@meoihia1963]

Dear , i have brick x99-TF. you can help me ?

[@softwareshare1113]

Good morning sir I have one question for you , I have CH341a and I have clip SPI 8 and now I have clip SPI 16 so how to use with this programmer?

[@jkazulyblanco]

Gracias, muy buen video pude arreglar mi rx580, sludos

[@marianopimentel5213]

If you dont have the button Detect on the CH341a Programmer, you only need to install the driver of the CH341a.

[@Martin-ot7xj]

Hi there , please make a tutorial video about how to reprogram (Startup or Super I/O) chip on laptop motherboard , as you know that if we get problem with (Startup or Super I/O) we must to change it with exactly same chip and same program !!! so please make a tutorial video about how to program a blank (Startup or Super I/O) in English , because your explanation is very simple and easy to understand . thnx

[@Miyconst]

I will see what I can do, at the moment I don't have enough material / equipment for such a video

[@martyhorten3743]

9:13 Power off the power supply if you have connected it to the motherboard - If you have the BIOS chip clamped onto the CH341A, Do you remove the chip by clicking "Eject"? 9:52 - 9:54 I could not understand what you were saying? Maybe comment reply to mentioned what you said. BTW Informative video - Thanks!

[@Miyconst]

9:13 If you have an option to "Safely eject" CH341A - you can do that, but in general, it's safe to just unplug it. 9:52 I just said, that there are some more features in the AsProgrammer application, but they go above the minimal usage guide.

[@francisco-mv1oy]

where find that case

[@Miyconst]

Which case?

[@aperson9375]

This programmer can be used for any system, that uses nand memory as bios, such as printers, tv set top boxes.

[@Miyconst]

That's true.

[@akiresu_x1291]

Even GPUs,right?

[@aperson9375]

@@akiresu_x1291 As far as I know if GPU board has supported NAND chip then it will support that too.

[@Pin-Din7]

Thank you for the video first of all. Since I see likes to post, I'll go ahead and ask: I'm using a NeoProgrammer v2.2.0.10 but so far when I want to open the repaired BIOS Image that someone has done for me, that has access to LBE++ BIOS Extractor (dealing with an HP BIOS here), I get the error message File not open, press ok to ignore & risk data corruption or abort to kill the program. Any ideas why that happens? What going wrong? When I press ok, the cursor on the laptop I'm using (since mine is well the patient not doing so well) just does an infinite loading circle.

[@SaajidRizvi]

Can you remove or disable computrace using this method?

[@jojojooo994]

Thank u :)

[@pinkoroponkopinko2379]

What a nice video

[@pantsi]

Hello what about hp bios files .exe it gives 4 .bin files if i choose to make a copy on this pc. which bios file i choose?

[@himanshuchauhanmusic]

Great video. Just wanted to know how to place the pins of the 16 pin motherboard to 4x2 pins set and insert in the programmer pins. Using the green chip. I want to solder the 16 pin bios chip on green chip of programmer and insert it into the programmer

[@Miyconst]

It's hard to explain without a picture, but you just follow the key, usually marked as 1 so it matches in all connecting parts.

[@diede3x060]

What page size? I've done it with 16 because it was a 16mb bios.rom

[@Miyconst]

The answer is: it depends. Different BIOS chip use different settings. If yours work with 16 - use it.

[@diede3x060]

@@Miyconst Thank you sir. If anyone ever has a bricked bios this will always be the first video I will recommend to people. The instructions are clear and not just for one specific motherboard generation.

[@diede3x060]

@@Miyconst Because of you I fixed my Asus prime B350 bricked bios

[@michaelglen6704]

Hi miyconst, my atermiter x99 shows code 61 and just stays and does nothing. Do I use this tool to refresh bios?

[@johnnyblack4261]

Hey mate, thanks for the video, I do have a question, I have a gigabyte motherboard and I downloaded F5 version from their website and after extracting, one of the files is a firmware image file. When I load the file in the uefitools, I don't have the option to extract the capsules, so I assume I can skip the step where I have to extract the capsule and can write the file directly into the bios?

[@Miyconst]

That's correct. You probably can just write the file. As far as I know, Gigabyte doesn't use capsules, it's only Asus.

[@johnnyblack4261]

@@Miyconst ah right thanks mate

[@d11k4facts5]

Can I know why the AMD b450 motherboard's latest bios not support older 1000 Cpu's

[@Miyconst]

Because there are way too many AM4 CPUs and some motherboards have BIOS size limitation so they can't add support for everything.

[@Adaks]

I'm a bit confused? Would I be able to just disconnect power cord to pc, and press the power button multiple times to get all the juice out to then be able to clip the bios programmer on? Without the need of disconnecting the cpu?

[@Miyconst]

Yes, you don't have to disconnect the CPU while flashing the BIOS.

[@Leetut]

Anyone know how to read MX25L12833F it doesn’t seem to be supported anywhere

[@harelvazana1708]

hello, i bricked my x99 board bios and now it wont boot, i tried following this video but multiple things happen: 1. at first the program said Error connecting CH341(-1) 2. after removing cpu it said in the console 4 parameters which were all ffff or 0000 so i kept trying and nothing happend 3. the run led on the programmer became yellow and now its yellow even when its not connected any help would be great as i am stuck with a bricked pc because of a stupid mistake i made