very similar problem here. after exchanging the display the motherboard and the daughter board are connetcting each other making the outside speaker numb and activating headphones (even if not plugged in) once I omit skews on the bottom and do not put on the cover the daughter and mother board are not connected and the speaker is working.... I wonder If I can just leave out the dauther board but I am afraid that this might lead to overcharging a condensator or something similar.