Steven Troughton-Smith, a prominent iOS developer best known for combing new software codes for references for upcoming features, over the weekend indicated that portrait mode lighting effects, a major feature in the current iPhone generation -- iPhone 8 Plus, and iPhone X, could technically be added to iPhone 7 Plus from last year. The feature works like this: you take a picture, go to the photos app on your new iPhone and play with the "Lighting" effects. He writes: So yeah you just need to hexedit the metadata in the HEIC. Not quite sure where, I copied a whole section from an iPhone X Portrait Mode photo and it worked. Original photo taken on 7 Plus on iOS 11. Someone could automate this. Just to add insult to injury, if you AirDrop that photo back to the iPhone 7 Plus now it shows the Portrait Lighting UI, and lets you change mode. So Portrait Lighting is 100% an artificial software limitation. 7 Plus photos can have it, 7 Plus can do it.