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Bios 5720 problems 5720-6738

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During the bios update process, shortly after deleting the current bios, the computer crashed.

Now the computer is no longer booting.

I tried this:

1) Download latest Bios from Acer site

https://www.acer.com/ac/pt/BR/content/support-product/548?b=1

the file BIOS Version: V1.45

 

2) extract the file 2 times, until show: CL50145A.fd

3) Copy fd file to DVDR, And i burned the DVDR.
4) Power on laptop using <Fn>+<Esc> + power button, with DVDR in side the driver

 

does not work,
Is this procedure wrong?
Is the bios update file correct?

 


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