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‎04-14-2018 03:18 PM

HP Recommended
Product: HP ProBook 450 G3
Operating System: Microsoft Windows 10 (64-bit)

Hi!

 

Recently my HP ProBook 450 G3 stopped working.

 

When I press button "ON" - the screen is black and caps-lock is blinking.

 

After removing BIOS battery for a while and putting it back - the laptop started to make beeps 2.2 - 2 long, then 2 short .

 

It looks like BIOS problem, so I've tried BIOS restore with USB flash, but neither WIN + B or WIN + V doesn't work to enter BIOS recovery.

 

Any thoughts about how to solve it?

7 people had the same question
2 REPLIES 2

‎04-14-2018 04:29 PM

HP Recommended

From: HP and Compaq Desktop PCs - BIOS Beep Codes

 

2 short beeps, 2 long beeps
BIOS recovery successful

 

 

 

 

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‎04-14-2018 04:41 PM

HP Recommended

from : https://support.hp.com/us-en/document/c01732674

Caps Lock LED blinks slow 2 times followed by 2 quick blinks. mean The main area (DXE) of BIOS has become corrupted, and there is no recovery binary image available. (Also happens when updating the BIOS.).

 

 

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