Lenovo ideapad s540-13api (AMD) driver dump request

[NonaHarry]

Hi everybody
I have a ideapad s540-13 AMD version and the bios is broken during the update process. I tried to use Phoenix Crisis Disk to reflash it but with no luck.
So I bought a bios programmer (CH341A) and SOP8 clip. Right now I need to extract bios file from the executable.

What I have tried:
Double click the EXE. I got a "ERROR 255 - TDK library initialization failed" error and nothing appeared in %temp% folder.
Extract the EXE with 7z. It can not open it.
I did find some file in the temp folder from laptop hard drive. I will attach them as well.

Also I found two SOP8 chips on the board. Winbond 25Q80DVSIG and GigaDevice 25LB64CSIG which one is the bios chip?

So appreciative of your help.
Cheers

[SMDFlea]

Re: Lenovo ideapad s540-13api (AMD) driver dump request

Check this tutorial to extract a TDK bios https://www.badcaps.net/forum/showthread.php?t=80861 . The bios will be the 25LB64CSIG. You`ll need it as it will have your DMI info, serial etc .Post your bios backup .

[NonaHarry]

Re: Lenovo ideapad s540-13api (AMD) driver dump request

Check this tutorial to extract a TDK bios https://www.badcaps.net/forum/showthread.php?t=80861 . The bios will be the 25LB64CSIG. You`ll need it as it will have your DMI info, serial etc .Post your bios backup .

Thanks man, that works! The capsule is the same as I found in the laptop hard drive. Checksum matches.
I didn't backup my old bios manually (how stupid I am). But I remember the phoenix flash tool do make a backup before flashing. Do you know where can I find it?
Another stupid move I did is that I thought the Winbond chip is the BIOS so I flashed the capsule file into it. Is it gonna be alright?

Thanks again

[SMDFlea]

Re: Lenovo ideapad s540-13api (AMD) driver dump request

The winbond chip is 1MB - W25Q80DV: 8M-bit/1M-byte .Read it again and post the backup here. The phoenix flash tool should make a backup called bios.bin (or something) from the 25LB64CSIG (8MB bios) ,search for it and post that if you can find it on the hard drive/ssd.

EDIT: The 25LB64C is 1.8V so you`ll need a 1.8V adapter. If the chip isn`t in your support list choose Winbond W25Q64FW

[NonaHarry]

Re: Lenovo ideapad s540-13api (AMD) driver dump request

I'm not able to find the backup file. But the laptop back alive after I flash the bios file. However right now the laptop doesn't charge. The charging light does not light up when I plug in the type-c charging cable. And MTM, Lenovo SN and UUID number in the bios is "INVALID". Does these happen because I accidentally overwrite the Winbond chip?
I have totally no idea what to do next.

[SMDFlea]

Re: Lenovo ideapad s540-13api (AMD) driver dump request

The UUID,serial etc are stored in the bios,(the EC sometimes)and as you didn`t make a backup its gone.Have another look for the bios backup,it could be called bios.bak ,search through hidden files and search by the date when you flashed the bios.If you can`t find the old bios its possible you may be able to add the info back using a tool called LVAR (lenovo variable tool),if you can`t find a copy on the forum search around for it.
The charging problem is related to the EC,see the release notes for the issue.Run the bios update again to flash the bios/EC,and check if it offers to make a bios backup,and if so,what its called,you don`t want to overwrite the older bios backup,if there is one.

https://pcsupport.lenovo.com/gb/en/p...loads/ds541891

EC Notification:

[Fixed] : None

[Modified] : Modify PD Power supply logical to fix USB type-c charge issue.（226767）