Bios For Lenovo All In One C20-00.(LA-C671P)

[MICHAEL_2013]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

Try these , untested . If they don`t work check the Realtek RTD2136N IC

Thank you friend! After trying several, the only one that gives video is your bios dump. the first of the list.. You are the best

[Marasmo]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

Decided to install the C20-00 .bin posted earlier and it worked. I'm sure i have installed the right BIN for the Lenovo F0BB00GGLD but now i'm sure it was a corrupt file. Now i have a different machine ID and serial number (obviously a .bin from another c20 model) but i don't care. I'm investigating if serial and model # can be changed without using the Lenovo Bios tool . Thanks a lot to the contributors.

[Marasmo]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

Hi. I would like to ask you for some help. I have right now a Lenovo C20-00 F0BB00GGLD. This pc was having an error with an USB port, when i tryed to access the Bios there was a password, wich is rare. Decided to reinstall the Bios file via windows lenovo installer but when the pc started up i had only a black screen, no mouse, keyboard and nothing else but fan noise and the start button led. I have indentified two memmory chips one is MX25U6435F 64Mbit chip with a 8MB file on it and a smaller 128K Winbond 25X10CL which i suppose is the EC. The 8MB .BIN you can extract it from the lenovo .exe file but no EC .BIN to be found anywhere. I bought the CH341A and rewrote the MX25U6435F which was the only one with enough capacity so it had to be the main Bios. It was the same, no video, no ports, nothing just the fan and led. I'm stuck, two weeks and no progress. Do you have some experience with this kind of hardware? Maybe the EC needs rewriting with the files posted in the forum? or maybe is something else?
Thanks!

[SMDFlea]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

Thank you very much, I already followed the steps but at the time of writing the new .bin file it tells me that the file size is larger than the chip size

Try NeoProgrammer software - https://www.badcaps.net/forum/attach...7&d=1626459940

[jocam492]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

https://www.youtube.com/watch?v=DWWigscuQDY

Thank you very much, I already followed the steps but at the time of writing the new .bin file it tells me that the file size is larger than the chip size

[peste]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

what are the steps to restore the BIOS with a Programmer Usb Ch341a???

I have the c20-00 model and I update the bios, and it turns on but it stays with the black screen.

https://www.youtube.com/watch?v=DWWigscuQDY

[jocam492]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

what are the steps to restore the BIOS with a Programmer Usb Ch341a???

I have the c20-00 model and I update the bios, and it turns on but it stays with the black screen.

[krish80]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

Hello All,

I didnt have the 1.8 volt adapter, got it today, I have the CH341A black version and tried with multiple programmers, end result is that the chip doesn't verify once the program is written on it..


:-( i am back to where i was stuck

PS the EC bios was successful

Do guide if anyone knows what to do...

Error Code: Current programmer: CH341
20:06:23
Verify memory...
Verification error on address: 00000000
Execution time: 00:00:00.060

[krish80]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

Sure, thanks for the file, will update once i tried flashing, have good day

[AAAC]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

Give this file a try and post feedback.

[krish80]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

Thank you,

but does anyone have a bin for winbond 25x10cling (1619), lenovo all in one c20-00 series, motherboard model number is LA-C671P,

EC bin file needed, please help.
Thank you,

[SMDFlea]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

Hello,
which is ec bios file and which is the main bios file

thank you

None of them ,they`re both different 8MB bios dumps. The EC/KBC should be 128KB ,i don`t have it.

[krish80]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

Try these , untested . If they don`t work check the Realtek RTD2136N IC

Hello,
which is ec bios file and which is the main bios file

thank you

[metropolisystem]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

Try these , untested . If they don`t work check the Realtek RTD2136N IC

hi friend, the file c20.00.zip work perfecly, thanks you

[peste]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

can we extract bin from exe file. if yes which tool to use.

in this case you don't need a program ... right click on exe. and extract the file ... in the folder made, you have the bios ...

[param]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

can we extract bin from exe file. if yes which tool to use.

[param]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

this file dosent work

[hipsaul]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

thanks you it works

How did you bro to program, I already have the programmer, I only need the .bin, do I need a 1.8 v adapter? The Bios chip is w25x10cl, the same does not give me video

[hipsaul]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

Thank you very much, got the programmer and the 1.8v adapter and the first bin file worked

One question, is your Bios chip the w25x10cl? If it is that I need the 1.8v adapter to program ???

[alvareziluis]

Re: Bios For Lenovo All In One C20-00.(LA-C671P)

You will need an SPI bios programmer such as an EZP2019,CH341A,TL866II

Thank you very much, got the programmer and the 1.8v adapter and the first bin file worked