Chosen Solution

Hello 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 ?? Thank you

@shahram71 since everything else seems to be working for you, I’d go with a new display assembly. It is of course possible that this is a board error but you can rule it out with a new display. If it still wont work with a new one then you know you have trouble with your new motherboard (unlikely).