Chosen Solution
Hi, got an iPhone 7 Plus bought from someone. It came with a cracked screen, powered on but the touchscreen didn’t work. When opened, it came that there was a liquid in a few places so I took it into the bath and cleaned everything. Phone still powers on, I’ve managed to restore it with iTunes but there’s no display or backlight. Tried with a few different screens and checked them on the other 7 Plus - all ok The only thing is that when I’m plugging in the original screen - phone powers on as before - going to the starting screen with no issues but without the touch (original fault). Any ideas what can be done here? I’m happy to provide any more pics if needed. Thanks
Please elaborate on what kind of bath… ;>). On the iPhone 6S and up, the Touch circuitry is embedded into the screen. However, The Touch & LCD are still powered via the Chestnut IC (U3703) so you’ll want to check those power outputs for shorts. The backlight is powered by the Backlight Driver (U3701) so check that as well.
