XPS 8940, cannot update BIOS 2.2.0, black screen

I tried clean install of Home version. It was activated automatically. Absolutely same result. Btw, as far as I know, updating BIOS from usb stick doesn’t related with OS. Am I right?

You have the Enterprise version so that might be the problem. That version is the business version and is controlled by the employer. Bios updates might not be allowed. Check with the volume license holder.

If you installed the Enterprise version by mistake, your computer might not be activated. You must clean install the correct version of Windows--Home or Pro--which you have the license for.

Hello, Can you please share the Service Tag / Express Service code / Order Number in the text format for which you need assistance.

Have you solved the problem yet? If not, do you have anything installed on the PCIe x4 slot?

I had an SSD adapter installed there and I had the exact same problem updating to 2.2.0 until I removed it. However, you cannot use that slot after the BIOS update (installing adapter again will make the computer hang at BIOS)

Thank you very much!!! Exactly the same situation. So, now I've removed SSD adapter from PCIe x4 slot and voila. I've got BIOS 2.2.0 installed! Thanks again. But what a ridiculous situation? Dell? Let's say I bought a Mercedes in March, and in October, the dealer said, forget about the cruise control. How does it feel? The answer looks like a solution and it is. So, should I accept it, or wait for Dell reaction? And yes, now I can't use PCIe x4 slot SSD.

Glad to know you got it installed! I agree it's a pretty bad situation though. You are not even allowed to downgrade from 2.2.0 so you cannot go back to your PCIe x4 glory until Dell decides to roll an update to fix the issue. And enabling resizable bar in BIOS made my windows lag for some reason so I disabled it back to get rid of lag. So far, all I did was break the PCIe x4 slot lol.

Nice find Siggler. You saved my bacon because I was fixing to take out my M2 adapter and try one last time to update bios. That would have really messed me up on my work machine.

What about 2.3.0? No fix for my SSD adapter PCIe x4 slot. The computer still hang at BIOS. What about yours?

Same. The slot still doesn't work after bios update.

Hello, Dell. Do you plan to fix it?

Hi,

We have sent you a private message. Please check and reply, we will be happy to assist you. 

Can you share me your computer's device photo & install location?

@Mary G @Mary G. 

How do you know they have the Enterprise version. Do you mean Windows or what? Poster said it was Windows 10 Home. So USB ports should not be disabled because it was Windows 10 Home. 

"XPS 8940 (march 2021, the warranty is good). Windows 10 Enterprise."
DELL-Admin>

Hi AuroraSu, I understand your concern. But... They don't have a solution. Take a look at this "private message" from Dell-Cares: