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most likely a loose connection if it is flickering.. if there are red squiggly lines usually means driver issue.. and if there are blue banding lines, typically means the chip is overheating/desoldering.
This could be a LCD screen problem or a video card problem. Connect an external monitor to your laptop, power up the monitor first then boot up your laptop. The video will automatically switch to the external monitor, then go to the Internet and see if this flicker occurs on the external monitor. If it still flickers then the video card has a problem. If it does not flicker the the LCD screen maybe faulty. Get back to me with the results of these test and I can advise the nexr course of action.
Try an external monitor to the laptop and see if it flickers. If it does, more than likely your video card is going bad. If it does not flicker on the external monitor you probably have a loose video cable or lcd inverter cable. Go back inside and remove the 2 cables that go into the LCD Inverter that sits at the bottom of the LCD Screen, then plug them back in. Then unplug the video cable at the top behind the lcd screen, plug it back in and secure it with a piece of tape right where the two connections meet.
More than likely the backlight is failing. If you can still see a VERY faint image on the screen this is almost certainly the problem.This is a very difficult fix. I recommend a replacement LCD.
It MIGHT be a bad lcd cable. With the laptop on, slowly open it from closed to open and back again and see if there is a position where the laptop screen does not flicker or turn off, [or if it does turn off if it turns back on.
If the screen goes COMPLETELY black then your GPU is failing.
unseat and reseat the LCD cable behind the LCD and also where it connects to the motherboard. If that doesn't solve it, then try another lcd cable. If that doesn't fix it then that means the LCD is bad and would need to be replaced.
Mostly it is the problem of the screen's internal mechanism. Something has got loose and moves here n there when moved. If you can, you replace the malfunctioning parts or consult service centre for it.
Connect an external monitor to the laptop and power it up, if you see a clear image on an external monitor, this means your video card is OK.
If you see a dim image or flicking image on the laptop's LCD screen it means you have a backlight problem.
Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case. The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills. Check out www.lcdparts.net for parts, repair service and DIY info.
That could be ths connector that connect the LCD to the Motherboard in the laptop. Ive seen something similiar wherein i took down the screen, cleaned up the connectors and it worked like new...... for a few weeks then it went back and started he flickering again. We finally fixed the problem by replacing the screen. Apparently the connector behind the screen was giving trouble.
Have someone check the cable from your LCD to the board but I think you might need to fix the connector or replace the LCD screen.
Regards,
babb
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