ROG Screen Replacement Doesn't Power On

[Cloaked1]

My laptop’s screen no longer works but it can still connect to external monitors. I’ve ordered a replacement screen that is compatible with my laptop model (Asus G750JW) but the replacement screen fails to power on.

Should I buy a replacement ribbon cable or could this just be a loose wire underneath the keyboard?

 

[Tradesman1]

Might be, if comfortable with hardware can open it up and take a look, else RMA or take to a shop