Chosen Solution
Just ran a board through water cleaning and it boots up but no display. Would it most likely be the backlight ic u23, or filter? Connector itself looks good. Thanks.
Kinda what GhostMik said. I’m hoping you cleaned a water damaged board with 90% isopropyl alcohol. You should try to test the display to see if it’s faulty. The backlight could be replaced, by itself. It’s kind of a difficult process Here’s a guide for that http://m.youtube.com/watch?v=Ywg5GO8z6wA Here’s a display replacement guide iPhone 5s Screen Replacement Here’s parts iPhone 5s LCD and Digitizer
