Chosen Solution
I am working on a iPhone 5 SE that was lost in the woods and got a little wet. The original screen that was on it no longer works so I tried a different screen and when you turn the phone on the left hand side is just black and the right works fine. I had a cracked 5s screen at the shop and connected it. It had a bad LCD but from what I could tell the screen worked fine on that. I went through and cleaned thr logic board and still no luck. They got the phone and put it in rice and turned it on before they brought me it. Is there a chance they shorted something out?
Yeah, but the display works for both of those phones. Also he said he tried a different display, and it worked. He also said he cleaned it. Im hoping with 90% isopropyl alcohol. Sounds like it needs a new ultrasonic bath, and a new display. Yes OP, it is likely something could have been shorted out, if they connected power to it, while moisture was hanging out in the phone
Are you asking about an iPhone 5S or an iPhone SE. From a logic board perspective, there is a huge difference. Assuming a 5S, there is one backlight anode and two backlight cathodes. I would check those circuits first. FL24 is the anode (which obviously works) and FL25 & FL26 are the cathodes. One of those, or the associated capcacitors, has probably failed. If they look good, then check the rest of the backlight circuit. The iPhone SE has two drive circuits (coil & diode) for the anode.
