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.

Broken laptop LCD screen

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?

New LCD screen not working


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.

Check cable connections

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.

Improperly connected cable

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

Properly connected cable

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.

Pins inside connector on LCD screen

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.

Old screen lights up

Related post: Laptop has bad video on the LCD screen. What is wrong?

 

Laptop Repair Videos

 

If you find this article useful, please consider making a donation to the author. Thank you!

 

 

 

79 Responses to “You replaced broken LCD screen but the new screen is not working”

Pages: « 8 7 6 5 [4] 3 2 1 » Show All

  1. 40
    cj2600 Says:

    adrien,

    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.

    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?

  2. 39
    cj2600 Says:

    Gary Magill,

    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.

    Apparently, the new screen is not compatible with the old one. Can you return it and purchase the right one?

  3. 38
    adrien Says:

    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

  4. 37
    adrien Says:

    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

  5. 36
    Jonathon Says:

    I have the same problem as Gary with a lcd panel. please help/

  6. 35
    Gary Magill Says:

    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

  7. 34
    Ben Says:

    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!

  8. 33
    Sylwia Says:

    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

  9. 32
    mohammed zaid Says:

    acer 3050 model dvd r/w not working so please send me solution

  10. 31
    cj2600 Says:

    Rick_D,

    Hi I have an old HP ZD7000 that had a cracked screen. IT had the part number LP171W01(A4)(K1) I replaced it with a compatible one. The backlight comes on but there is no bios screen. I connect the old screen and it works just fine. Aside from the replacement being bad, is there anything else that could be wrong?

    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.

Pages: « 8 7 6 5 [4] 3 2 1 » Show All

Leave a Reply