corrupt BIOS update file - can someone confirm that file is bad?

I have a Lenovo T560 which is non-bootable. Even Windows Update (for 1903) could not fix this problem when I did selected Troubleshoot and Command Line.

The issue is that the BIOS update file I downloaded is apparently corrupted. Can someone try out this file and tell me if I screwed up repeatedly, OR indeed this file is bad.

I just got off the phone with Lenovo, having talked with about five different people for over one hour. I got switched around from hardware to software, and the last person said that because my machine is out of warranty, they will not talk with me. ** Since when does BIOS support end when the warranty ends? **

I need to use my Retrospect backup software to restore the damaged Windows partition. Retrospect uses a Recovery USB boot drive, to start the data restore process. I encountered a problem with the Retrospect Recovery boot drive which is specific to the T560. (That Recovery drive works fine on my desktop.) Retrospect support wants me to update the BIOS before they will look at the problem on their end.

The Retrospect support engineer was very helpful and sent me this link, which the right one for my system:
https://pcsupport.lenovo.com/gb/en/p...loads/ds112310

Because the system won't boot Windows, I downloaded n1kur23w.iso, which is for "BIOS Update (Bootable CD)." I downloaded that file onto my desktop system. When I created a bootable USB drive using Rufus 3.8, I got an error message. When I MOUNTed that ISO file, I saw that it was empty. So I repeated the download process twice more, with the same result.

So can someone, anyone, please download this ISO file and tell me if it is good or not. All I need is confirmation that the file IS good, and I screwed up repeatedly, or that is it not good, and I have to figure out some way to get a message to Lenovo senior support personnel. Anyone have a contact at Lenovo support?

I have been a Thinkpad customer since about 1995,and my wife and I currently have Thinkpad laptops. I think I deserve a better answer than, "Sorry, your system is out of warranty."

Not everyone has the same system as you do, so this bios update is not going to work for anyone but those with that particular model and brand.

Did you read the txt file for how to create a bootable UEFI? https://download.lenovo.com/pccbbs/mobiles/n1kul23w.txt
https://www.studiosoundsradio.com/cr...-bios-updates/
Creating Windows UEFI Boot-Stick in Windows - Thomas-Krenn-Wiki

See the part about using Rufus to create a UEFI stick. How to install Windows 10 from USB with UEFI support | Windows Central

Try extracting the contents with winrar or winzip you may have better luck. Isobuster
or the like might work to burn to usb rather then cd.

bro67 said:

Not everyone has the same system as you do, so this bios update is not going to work for anyone but those with that particular model and brand.

Did you read the txt file for how to create a bootable UEFI? https://download.lenovo.com/pccbbs/mobiles/n1kul23w.txt
https://www.studiosoundsradio.com/cr...-bios-updates/
Creating Windows UEFI Boot-Stick in Windows - Thomas-Krenn-Wiki

See the part about using Rufus to create a UEFI stick. How to install Windows 10 from USB with UEFI support | Windows Central

Bro67, bobkn, and Thomaseg1,

You are probably not going to believe this. I still can't believe that what I'm about to say actually worked, but it did.

I had the idea to post this same thread message on one of the Lenovo forums. Not 10 minutes after I posted, this really helpful dude posted detailed instructions.

The TL;DR version is that I should run the Windows version of the driver program, but do not actually do the update (since I ran this program on a different system.) In the extracted files, are instructions for how to make a bootable USB drive. And it all just worked.

So I followed all the links in Bro67's post and saved them off for future reference. Who knows?