Chosen Solution
Replaced rear camera on my 7plus because I could only get a black screen. Now the new camera won’t focus. Operating system up to date wondering what a fix could be?
If the camera “works” (that is, no more black screen) but doesn’t focus, then you may have received a partially defective replacement camera. To be certain, closely inspect the camera flex and connector to insure there is no damage. You may need magnification to see things properly. If it looks good, then similarly inspect the connector on the logic board. If everything looks good, you will need to either try another, preferably, known-good camera or try your camera in a working housing to determine what is wrong.
