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What's DOS?
Posts: 1
Registered: ‎01-23-2018
Location: GB
Views: 4,986
Message 1 of 4

Unbricking G580 after BIOS update failure (Solved / Guide)

It took about 6 hours and a bunch of Russian-language websites to solve this one.


This is for people who have spent hours and hours trying to bring their dead or bricked Lenovos back to life after a failed BIOS update.


1. Get on a working computer and forget everything you read about making a bootable USB with Crisis tool, you don't need one.


2. Format your USB (16GB or smaller) to FAT32.


3. Download the latest BIOS from the Lenovo website. Currently that link is here:


4. Now we're going to need to open Command Prompt. Hold Windows key+R, type "cmd", click OK.


5. Type without quotes in the box "cd C:\Users\<Your user folder name>\Downloads" and press Enter key


6. Then type without quotes "62cn97ww_32.exe /ext" and press enter (If your file has a different name, adjust accordingly)


7. You'll see about 4 files appear. The one you want will be called "62cn97ww_32.cap". Rename the .cap file to "BIOS.cap" and copy this file to your formatted USB stick.


8. Make sure your dead laptop is switched off. Plug in your USB stick into a USB 2.0 port (NOT the USB 3.0 ports). Hold down Fn+R, then while holding press the power key and keep it held down untiil something happens.


If successful, your laptop screen will light up, a DOS screen will appear and the BIOS will flash itself. If it doesn't work, the laptop will immediately switch itself off again. Leave this running until it's all done.


I hope this helps someone googling this in the distant future.


Keywords you might have searched: / QIWB5.bin / phlash16.exe / Crisis tool / WiNCrisis / boot.wph

What's DOS?
Posts: 1
Registered: ‎07-01-2018
Location: IN
Views: 4,662
Message 2 of 4

Re: Unbricking G580 after BIOS update failure (Solved / Guide)

I have similar issue that bios setting option is not visible I search on internet and found that have to flash bios. I tried this method it shows only blank screen with webcam light on fan running high. Noting happens I wait for more than 5 minutes. Tell me how to fix it.
Blue Screen Again
Posts: 2
Registered: ‎04-01-2019
Location: CL
Views: 2,699
Message 3 of 4

Re: Unbricking G580 after BIOS update failure (Solved / Guide)

Dude, i register just to thank you, this solved my problem (Black screen with nothing on it, ater take out the CMOS battery) with a G 480 laptop. And also translate this to spanish, and post it here

What's DOS?
Posts: 1
Registered: ‎05-06-2019
Location: GR
Views: 2,334
Message 4 of 4

Re: Unbricking G580 after BIOS update failure (Solved / Guide)

Well dude you are magician!!! I also registered only to says thank you! i followed your procedure  and machine came back to life!!! Thanks man

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