Ok I just dropped my gs4 like 6in & the screen went mostly black. The verry top is still lit up, & I can see that t y at part still responds to touch [ I can pull down drawer]... ive been truing to check out online, but Idk wtf needs replacing. .. tge LCD? or digitizer? Or are they the same effin thing? & does ANYONE know where to get a cheap one & get it to me FAST!!!?