Laptop won’t start after BIOS update

bioslaptop

I have an HP Probook 4540s laptop. I recently updated its BIOS from HP's website. After the installation the laptop restarted, but since then there is no display. I waited for an hour until the battery ran down, after when I plugged it in to the power supply it's the same:

  • Capslock light on the keyboard is continuously blinking.
  • The fan is running faster than the usual speed. I can tell this from the sound.

And no display. I waited for more than hour for any response, but there was none. I searched the internet and found out that a lot people don't update their BIOS in HP laptops. I don't know why the official HP website even makes such updates available.

Is there a way I can reset the BIOS, hard reset, through USB of something? I have another PC with which I can download anything if it's required. Can anyone please help?

UPDATE

I also tried to recover BIOS through UEFI USB method, but nothing happens after pressing "Win" + "B" and powering on USB led flashes for few seconds and than everything is same.

Best Answer

I was also facing exactly the same problem, and resolved it with the following process:

  • Press the computer power button and then the Esc key
  • Now, press F10
  • Pick these options: Restore Defaults → Reset BIOS security to factory default
  • Answer "Yes" when asked, then press the key corresponding to the option Save Changes and Exit.
  • You system will reboot now. If you're asked if you want to use the fingerprint authentication method, answer "Ignore".
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