Hello, I bought this screen off of eBay
https://www.ebay.com/itm/3D-120Hz-G-Sync-15-6-LCD-SCREEN-B156HTN05-2-fit-B156HTN05-1-f-Asus-Acer-AUO52ED/352379961125?ssPageName=STRK:MEBIDX:IT&_trksid=p2057872.m2749.l2649 and it posts, and I can access the BIOS and everything with it, but when it goes to the login menu, it is not backlit. When I get to the login menu, everything is very dim. I have an external monitor attached and the laptop works fine, but for portability I need the screen installed itself. This is me trying to go from 60hz to 120 hz. Any help would be appreciated. I was told that I need to update the motherboard, but I don't know what to do.
Tech Support Guy System Info Utility version 1.0.0.9
OS Version: Microsoft Windows 10 Home, 64 bit, Build 18362, Installed 20200519131714.000000-240
Processor: Intel(R) Core(TM) i5-7300HQ CPU @ 2.50GHz, Intel64 Family 6 Model 158 Stepping 9, CPU Count: 4
Total Physical RAM: 16 GB
Graphics Card: NVIDIA GeForce GTX 1060
Hard Drives: C: 155 GB (83 GB Free); D: 931 GB (814 GB Free); E: 465 GB (364 GB Free);
Motherboard: Alienware Alienware 15 R3, ver A00, s/n HWXSXF2.CN1296372Q0047.
System: Alienware, ver ALWARE - 1072009, s/n HWXSXF2
Antivirus: Windows Defender, Enabled and Updated