water damage - works but screen is dim (can barely see everything)
Left iphone 3 out on deck during a rain - put it in rice for a couple of days and it finally turned back on and everything works but the screen is dim - Should we try to replace the screen or is there something else we should do first?
Your back-light is out which might be fixed by replacing the LCD. It could also be related to the logic board which in that case, you're better off getting a new phone. I would start with trying to replace the LCD.
LCD panel / Does not include touch portion of display or the metal backing plate. — 6 available at 29.95 each.