You replaced the broken LCD screen in your laptop with a new screen but it’s not working. Does this sound like your problem? Let’s find out what could be wrong and how you can fix it.
First of all, I assume that your new LCD screen is compatible with the old one. Different screens require different video cables. Make sure you new screen is compatible with your laptop.
OK, let’s say you accidentally damaged the LCD screen in your laptop. A part of the screen still works fine but you cannot use it like that so you decided to replace the screen yourself. You can find LCD replacement instructions in service manuals or this DIY site.

You did some research and purchased a compatible screen, installed it into the laptop, turned it on and… The new screen is not working!!! What could be wrong?

Before you start to panic, check all cable connections again. Check connection between the video cable, LCD screen and inverter board. Reconnect cables just in case.

Take a closer look at the connection between the video cable and LCD screen. It’s possible you accidentally pulled the video cable from the connector during the screen installation.

The video cable has to be seated properly, all the way down.

Also, on some older LCD screens there are very thin pins inside the connector. Take a look inside the connector, make sure there are no damaged (bent) pins.
You can straighten bent pins with a very small screwdriver but this procedure requires a lot of patience and concentration.
Fortunately, most newer LCDs have a different type of connector, without fragile pins inside.

OK, you have reseated all connectors and cannot see anything wrong but the new screen still is not working. What’s next?
Remove the new screen and connect the old one. If the old one works properly (except the damaged area) but the new one is dead, apparently the new screen is defective and has to be replaced. Hopefully it has warranty.
Here’s another scenario. The new screen kinda works. You can see a very faint image but there is no backlight.
If that’s the case, disconnect the new screen from the inverter board and plug in the old screen instead, as it shown on the picture below. If the backlight inside the old screen lights up, apparently the new screen has defective backlight lamp and has to be replaced.

Related post: Laptop has bad video on the LCD screen. What is wrong?
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April 4th, 2009 at 6:59 pm
adrien,
Unplug the AC adapter, remove the battery and wait for a few minutes. Now plug in the AC adapter and try turning it on again. Does it work?
April 4th, 2009 at 6:57 pm
Gary Magill,
Apparently, the new screen is not compatible with the old one. Can you return it and purchase the right one?
April 4th, 2009 at 2:55 am
Hi,
I changed my screen for one I thought was identical. When powering up, my laptop shutdown for good. It seems that I should have checked the screen I had received was the one I had ordered
Now my laptop doesn’t react to the powerup button anymore. Do you have any idea what I could have damaged, and why?
Thanks
April 4th, 2009 at 2:50 am
Hi,
I ordered the same model as the one that broke, connected it, but after 1 second of powering my pc shutdown. After checking it seems the screen I received wasn’t the one I had ordered. Now the laptop doesn’t react to the power button at all.
Do you have any idea what could be damaged and why it was damaged?
Thanks
March 26th, 2009 at 12:43 pm
I have the same problem as Gary with a lcd panel. please help/
March 17th, 2009 at 6:44 am
We have ordered a screen from screenaid and need to find a resolution for our customer. The old screen has a slot on each side of the adapter. But the new screen does not therefore the sodder joints wont allow the video connector to slide into the connector. the video connector has a clip on each side so it has to go past the adapter. Please advice
Gary
March 15th, 2009 at 3:51 am
My laptop is a fujisu lifebok e8000 and it uses a samsung LTN150XG-02 glossy LCD screen. i wanted to replace it with a LTN150XG-01 matte screen but it doesnt work. everything works fine as swapped back the old one to post this. Do i have to get the EXACT same model as replacement? or do i have to change the inverter to make it compatible with the new screen? thanks!
February 19th, 2009 at 12:30 pm
HI there,
Im looking for 9 pin sata cable for internal power connector for my Asus W3V.
Im happy to buy the whole lot: internal power socket with the receiving board, the power jack and the cables. Just please give me your price.
All the best,
Sylwia
February 13th, 2009 at 8:05 am
acer 3050 model dvd r/w not working so please send me solution
February 2nd, 2009 at 10:52 pm
Rick_D,
1. Bad replacement screen.
2. Incompatible replacement screen. Maybe it requires a different video cable. Some LCD screen might look the same but they requires a different harness.