How do I know if I need a GlassTop/Digitizer or a (Complete Screen - LCD & Digitizer)?
The only function a glasstop/digitizer/touchpanel handles is the input from the stylus. If the image is coming up fine under the broken glass, most of the time a glass top is all you need. If there are black lines under the broken glass, no image, or it comes up completely black you will probably need a complete screen which is a LCD & Digitizer together.