Changed motherboard but LCD not working
I have LGG4 dual sim H818 motherboard become faulty so I ordered one from China it arrived yesterday I spent whole night learning to replace it but when I replaced it LCD not working now but everything else on phone works even I put SIM card inside and made a phone call from my other mobile it seems everything working but LCD is on darkness ,
THE LCD was working before with no problem any one has any idea
By the way I checked the connection few times made sure is in correct place
Any one has any idea before I go and get the new LCD for it ??