Answer to: After Replacing Digitizer - No LCD?It sounds like the battery may have been left plugged in for the duration of the repair. This can cause the backlight coil (or fuse) to fail. (1) Try unplugging the battery for a few minutes, and plugging it back in (with everything else staying plugged in). See if it will light up. (2) Also try a soft reset at this point (Holding the home and lock button until it reboots). (3) If you are still having trouble, it is most likely going to be logic board damage requiring advanced soldering skills and special equipment (the hand solders at walmart are not a good choice for this repair).