Black screen after failed BIOS update

Hello, I was having some issues with my keyboard and graphics so after trying many possible fixes, I then tried to update the BIOS from within Windows 10. I used the .exe file from: https://www.dell.com/support/home/us...n-545s/drivers and before it finished updating there was a window showing that there had been an error.

I restarted and now I only get a beep every five seconds or so and Windows doesn't load. All I see is a black screen and the keyboard doesn't respond.

I'd really appreciate any help. Thank you.

Please run the Dell pre-boot diagnostics:

https://www.dell.com/support/article...-codes?lang=en



Run through the POST troubleshooting:

What is POST?
Computer POST and beep codes
POST troubleshooting steps

Code:

Dell beep codes
Beep Code 	Description
1 beep 	BIOS ROM corruption or failure.
2 beeps 	Memory (RAM) not detected.
3 beeps 	Motherboard failure.
4 beeps 	Memory (RAM) failure.
5 beeps 	CMOS battery failure.
6 beeps 	Video card failure.
7 beeps 	Bad processor (CPU).

For other Dell beep codes, please refer to Dell's beep codes and PSA diagnostics chart page.

Hello, yes I have an old Dell computer hehe, 545s. I will check the link you posted. Thank you.

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I get 1 beep. The page says: BIOS ROM corruption or failure. Will try to run the tool. Let's see if it allows me to boot from a USB.

https://www.dell.com/support/article...tablet?lang=en

As a rule, it's not recommended to update the bios from within windows. Instead, update from within the bios and in most cases you don't even need to touch it. I bricked a £4k computer by flashing within windows and it was a very expensive lesson.

Can you actually access the bios? If so, you should be able to re-flash it.

zbook said:

There may be an option in the BIOS to restore defaults.

List of PC brands with their corresponding hot-keys

Use a camera or smartphone camera to take pictures and post images into the thread (diagnostics, BIOS, etc.)

The keyboard doesn't respond to any of the combinations. I even tried them after clearing the cmos, before each one.

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FreeBooter said:

https://www.dell.com/support/article...tablet?lang=en

Yes, thanks. I had read that page but my model is not listed.

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farrellart said:

As a rule, it's not recommended to update the bios from within windows. Instead, update from within the bios and in most cases you don't even need to touch it. I bricked a £4k computer by flashing within windows and it was a very expensive lesson.

Can you actually access the bios? If so, you should be able to re-flash it.

Yes, I know. It was late and I was tired, it was a dumb move on my part. :S

I can't even see the Dell logo now when I start the computer. And it doesn't respond to f2 or f12 or any other key. It just beeps and runs the fan.

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Try3 said:

Did you get that Bios update by using your Dell service tag when you went to Drivers & downloads on the Dell support site?
- In other words, how are you sure it was the right Bios update?

Denis

I used the model number.