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HP Recommended

ProBook 640 G2    Windows 10 Pro (64 bit)   i5 6th gen processor   8 gb ram   128 gb SSD

 

When I press the power button on my ProBook 640 G2, the backlit keyboard flashes but the laptop doesn't boot up. The keyboard continually flashes on, then goes off for a short time, and repeats until I press and hold the power button. When the keyboard flashes, the wi-fi and power lights on the front come on together, go off, and then the battery light comes on and goes off. This is repeated in sync with the keyboard lights.

1 REPLY 1
HP Recommended

Hi,

 

When you power on the laptop, the Caps Lock should blink in a specific pattern to indicate the source of problem. The blink codes are described in this HP Video: https://www.youtube.com/watch?v=5MNl-_uNOWM

 

Report back here with the error code and let's see if it can be repaired.

In this video, will see how to interpret the light and beep codes on your HP Notebook if you find that it does not start normally. You can use these codes to understand the underlying problem and take further steps accordingly. Chapters: 00:00 Introduction 00:21 Light locations 01:11 Identify ...
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