New LCD not working properly?

Hello.I reaplace an broken lcd on my Meizu MX3 phone. the phone was droped down,so the lcd brake. The new lcd is not working properly, like it is showed on video.On the botom of the screen touch dont work. My question is if this is a faulty lcd that i bought or is it a damage on motherboard or on touch connectorwhen the phone fell down.

I must know if i buy another lcd or a motherboard.