Hey bud, it sounds to me like a defective lcd. Did you eye it up against the old one to ensure it is an exact match? The only other thing is the flex cables, do they clip in to fpc connectors or do the push in and flip a clip over them? (I have worked on many tablets but not your model unfortunately) if it is a push in and clip over, make sure it is pushed in all the way, there is normally a white line as a guide so you know how far it goes in. And always make sure the battery is disconnected else you could cause more damage.