Backlight not working on replacement LED Screen Toshiba Portege z835

I have a Toshiba Portege Z835 P330 ultrabook. I accidently broke the old screen and ordered a replacement from laptopscreen.com My original 14" screen was a samsung model. The one laptopscreen.com sent me was an LG. The First LG screen I received partially worked as in I could see graphics, but no backlight. I sent the screen back for an exchange, and they mailed me a replacement. Same problem: Graphics, but no backlight at all. I am perplexed. What could the issue be? I've quadruple checked the connection and restarted the laptop multiple times. It doesn't appear the video cable is damaged.

The Samsung model # of my original screen is LTN133AT25-T01
The LG Model # of the "compatible" replacement is LP133WH2

Any insight would be appreciated as im not looking forward to hashing it out with the laptopscreen.com tech anymore. Thanks

1, This is an ultrabook. They all have LED screens. 2, I haven't seen a laptop with a fluorescent lcd screen in years, cmon. Thanks anyways.

Hey I apologize for my tone, and I do appreciate the help. I did, however, state that my screen was LED in the title of my post.

I asked for an identical Samsung replacement, and the company doesn't stock them. Only LG's. The laptopscreen.com tech suggested that a fuse may be blown on my motherboard. Who knows. It is beyond me now, and I will probably end up spending money for a local computer repair shop to look at it.

Thanks

Haha, Thanks TVeblen. I completely understand. It looks like you've helped many people on here, and you really have to start with the basic questions. It's hard to know the level of understanding or skill a person has, especially with a new member like me with few posts.

Yeah, everything seems right with the replacement LG screen. Drivers are up to date. Time to take it in to a shop I guess.
Thanks for the help & have a good day! :)

I have just encountered this exact problem. I broke my z830 screen by accidentally wedging it in a car door . There was definitely no damage to the motherboard though so I figured a replacement screen would solve my problem. The old screen still lit up and the majority of it even worked as normal except for about an inch wide crack down the left hand side. After replacing the screen it worked perfectly but with no backlight. I thought it was just faulty so ordered another. 3 screens later I still can't get a backlight. After putting the old one back in, it also now has no backlight.

Did you end up finding a solution for this problem kslip or should I just go buy another one?

No, unfortunately I am exactly where you are at. I am thinking I will have to pay someone an outrageous amount to get it fixed, and im low on cash so im just sitting on a useless ultrabook. I left it in storage, and now it wont even power on or charge. No status lights. Nothing. Good luck, please post back here if you figure anything out.