Zitat von Lost_N_BIOS im Beitrag #494

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@vince59 - For W25Q128FV you need to use 1.18 version CH341A software, or use ASProgrammer 1.41
Here is CH341A software package that has 1.18 - http://s000.tinyupload.com/index.php?fil...695330485827902
And here is ASProgrammer 1.41 - https://github.com/nofeletru/UsbAsp-flash/releases/

@dardoelectro - latest free version I know of is 1.34,'s included in package I put together here
http://s000.tinyupload.com/index.php?fil...695330485827902

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@vince59

Did you mod the programmer like this: https://translate.google.com/translate?h...tml&prev=search

I had programming verification issues until I had done the mod for this chip;-)

@vince59 - For W25Q128FV you need to use 1.18 version CH341A software, or use ASProgrammer 1.41, otherwise always fails. This does not require CH341A modification
Here is CH341A software package that has 1.18 - http://s000.tinyupload.com/index.php?fil...695330485827902
And here is ASProgrammer 1.41 - https://github.com/nofeletru/UsbAsp-flash/releases/

@Lost_N_BIOS
ASProgrammer 1.41 was amazing when I modded/reflashed my USB ASP and was programing Winbond 25Q64FVAIG's no problem. AS1.41 was happy with the same chips on my CH341A(previously modded to only give 3.3V), but in this case it failed to program/verify correctly the 128FV's. Modding my CH341A with 4.7K R's, and using Colibri(linked above), saved the day when using a 1.8V level shifter to program a MX25U12873F. The Winbond 128FV's read/write/verify was consistent too when using Colibri, after the mod?

Maybe it failed with the 3.3v mod because it's unnecessary and caused an issue? Not sure, but the mod you linked is not required either,, provided you use the versions I linked above (1.18 or ASP1.41).
I have not tested with colibri and W25Q128FV, so can't comment on how it works with those chips right now.

Zitat von Andromeda im Beitrag #499

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@Lost_N_BIOS
ASProgrammer 1.41 was amazing when I modded/reflashed my USB ASP and was programing Winbond 25Q64FVAIG's no problem. AS1.41 was happy with the same chips on my CH341A(previously modded to only give 3.3V), but in this case it failed to program/verify correctly the 128FV's. Modding my CH341A with 4.7K R's, and using Colibri(linked above), saved the day when using a 1.8V level shifter to program a MX25U12873F. The Winbond 128FV's read/write/verify was consistent too when using Colibri, after the mod?

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Hi everyone. I need to flash the bios of a Motherboard Asrock Z270M pro4. I have a CH341A, and i want to use trhow de 10 pin connector on the board (BIOS_PH1). So, i need some pinout to connect it or a video...

Thanks

Zitat von redmarine84 im Beitrag #483

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Hello guys, this was my first post and I need a little help.
Due to a bad flash, I've a useless Asrock X470 Taichi Ultimate to revive.
I've bought a CH341-A Programmer, and as you can see, the bios chip was a Winbond 25Q256JWFQ.
Which version of software it's better to flash this chip? 1.8V adapter needed?
Thanks in advance!

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Flashrom v1.2 for Windows + CH341A WinUSB driver.

Changes:
- Added progress indicator.
- Updated driver date.

Usage:
- Install the provided WinUSB driver.
- Click on Shell.cmd to open the command shell and enter:
- flashrom (to probe for a flash chip)
- flashrom -r backup.bin (to read the chip content)
- flashrom -w newfile.bin (to write a file to the chip)

@flashrom - is there a guide somewhere on using your software? And, is this latest build? I don't keep up with flashrom, have never used, but plan to grab and test/play with sometime soon
Thanks!

@redmarine84 - I am not sure on that one. What all versions of CH341A software did you try? Did you try ASProgrammer? Did you try Flashrom?
Try with and without PSU connected (but not forced/jumpered to power on, but power switch in rear enabled/normal position)

@diderius6 - What did you end up getting to work with W25Q256JW?

@flashrom
Your upload contains an invalidly signed driver (flashrom/win-raid.com 2018).
The driver (WCH 2017) I already have is validly signed.

How could I install that new driver (2018) with as well signed?


@Lost_N_BIOS
It should be the last new version 1.2 - you could find here:

https://flashrom.org/Downloads
https://github.com/flashrom/flashrom
https://review.coreboot.org/cgit/flashrom.git/

1. install for CH341a the special driver
2. start flashrom.exe

Best regards, MiMo

Zitat von Lost_N_BIOS im Beitrag #505

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@flashrom - is there a guide somewhere on using your software? And, is this latest build? I don't keep up with flashrom, have never used, but plan to grab and test/play with sometime soon
Thanks!

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Zitat von MiesMosel im Beitrag #506

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@flashrom
Your upload contains an invalidly signed driver (flashrom/win-raid.com 2018).
The driver (WCH 2017) I already have is validly signed.

How could I install that new driver (2018) with as well signed?

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Zitat von Lost_N_BIOS im Beitrag #505

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@redmarine84 - I am not sure on that one. What all versions of CH341A software did you try? Did you try ASProgrammer? Did you try Flashrom?
Try with and without PSU connected (but not forced/jumpered to power on, but power switch in rear enabled/normal position)

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@redmarine84

The 3 BIOSs from you has a size of 32MB, but the original only 16MB.
So the chip maybe could contain two BIOS or a bigger one for later updates. That seemes not to be a problem, but regulary.

The "bios.bin" and the "bios2.bin" contains only 16MB of data, so I cutted 16MB "FF"s out and saved as "bios(2)_16MB.bin"
Proofing both files per checksum - they are identical. So the data inside is the same by Colibri and CH341a-Programmer.

The "bios3.bin" contains some unknown data behind the 1st 16MB.

All 3 bios-files couldn't be read by UEFI MMTool v5.02.0024, but the original v3.90.
UEFITool shows errors, but also a lot of identified data (like p.e. GUIDs).

What configuration do you use for reading with CH341a ?
try this: [general] uncheck "Allows to skip empty data" | check "Write complete after verify"
[25\26 Chips] un/check "Use fast read mode" - try both | check "Main Memory + Secured OTP"
... all other options could be set by you.

tomorrow I'll look furthermore ...

Try also flashrom (you have to change the driver every time you switch between flashrom & Colibri/CH341a-Programmer) and AsProgrammer.
You are on a good way.

I built a simple Flashrom GUI for a more pleasant usage on Windows:



I also got the CH341A WinUSB driver properly signed for a simpler installation process.

Changelog:
- Added drop-down list to choose a specific model if multiple chips are detected.
- Slight changes on the interface.