I experienced an odd behavior on my iPhone 14 Pro (16.3.1) in the dark hours of this morning, not connected to a charger and fully charged:
I picked up the phone and instead of the usual lock screen image I saw a white on black symbol that looked something like the face ID symbol when setting up face ID, but enlarged. Basically a line drawing of eyes, nose and mouth. It hung there for a couple of seconds before going to the usual lock screen image and then unlocking. I had a bad moment thinking it was some kind of dead phone symbol, but it only lasted those couple of seconds. My just woke up mind was foggy so I can't be 100% sure of the exact image details.
I've never seen that before. The phone works fine. I can't reproduce it. Maybe this is well known but I can't find any references to it. Any guesses as to what it was?
I picked up the phone and instead of the usual lock screen image I saw a white on black symbol that looked something like the face ID symbol when setting up face ID, but enlarged. Basically a line drawing of eyes, nose and mouth. It hung there for a couple of seconds before going to the usual lock screen image and then unlocking. I had a bad moment thinking it was some kind of dead phone symbol, but it only lasted those couple of seconds. My just woke up mind was foggy so I can't be 100% sure of the exact image details.
I've never seen that before. The phone works fine. I can't reproduce it. Maybe this is well known but I can't find any references to it. Any guesses as to what it was?