Tuesday, October 6

Compaq Presario CQ40 with Flickering Screen

lcd flickering

Hardware Specifications:
Compaq Presario CQ40-336TU
Serial No. = CND91223LT
P/N = KAL51820044
Pentium 4 (RAM - 1GB)
32-bit operating system

Software Specifications:
Windows Vista Home Basic
Purchased Date: April 5, 2009

I bought this laptop last April of 2009 (under warranty) in Electroworld of SM San Lazaro. Just now I saw these flickering light on the bottom of my laptop screen which is so annoying and bothersome.

I had my laptop exactly 10 months now. Still pretty new and I must admit that it's not fully paid yet. It's really disappointing knowing that HP really has reputable name in terms of computers and other hardware stuffs. The fact that you put your confidence in the brand is something that HP management needs to take good care of because if they tend to overlook the quality of their product it will surely backfire in their sales and in the long run losses a lot of loyal customers. I don't want to think that Compaq is the sub-standard product of HP because it still an HP product..HP people you need to do something about this.

I even uploaded a video to see the proof of the flickering on my screen.

I thought I was the only one who were having the same problem with their laptop not until I search the internet and whoalah a lot of the Compaq Presario owner has the same exact problem as what I'm having here's the link: Compaq Presario CQ40 owners dilemma.


  1. so , how u solve the problems,,,
    i think i had same probs,,
    this flickering light is bigger than urs,,,,

    so we need to solve,,,?
    either we need to change a new screen or ,,,

  2. As I input these, the flickering on my laptop, I observed that it become much bigger and there's already a permanent line on the bottom aside from the flickering.

    Well, here in the Philippines, most of the owner of this type of model already file an online complaint about the issue and I have a link on the bottom my post about it. You can read the same sentiments as what I have..

    If you are still under warranty it is best to call the store where you bought the laptop..

  3. I'm having same problem - user from Malaysia! I thought I was the only one having this problem as well until I search for methods on replacing LCD screen - only then I know a lot owners having this problem. Btw, how to fix it?