Wrong screen, or some other issue?

[Retsboon]

So my friend ordered a replacement for his broken laptop screen, and got the wrong one. The specs are the exact same; same resolution, same size, same connector and everything, but it just won't turn on.
The screens in question are: https/www.laptopscreen.com/English/screen-part-number/B140XTN02.0/ and https/www.laptopscreen.com/English/screen-part-number/LP140WHU(TL)(B1)/

 

[webworkings]

If it is the same one then it may not be the wrong one. It could be that it is faulty or it could be that the cable to connect it is also a problem. He should exchange it and have them send another. To make sure it isn't that it is faulty before trying anything else.

 

[Retsboon]

He's already sent one back because they sent a completely wrong product.
Now he has managed to get the back light to light up on the one that arrived now, but it just stays white for a while and then starts fading. There's no picture at all.

 

[webworkings]

Does the device work with an external monitor?