Example: I buy a fresh, new android phone. First thing I do is insert an SD card that is full with photos. I open the gallery app and click on 8 photos from the SD card and look at them fullscreen. Now I remove the SD card from the phone. Question: Did these 8 photos (or any other non-clicked photos) in any way leave a trace in the internal storage of the phone, in the form of full copy, temporary copy, thumbnails...... (so in theory, this trace can be recovered with the proper recovery technique).
What do you think? Any answers are appreciated,
Thank you in advance, Leo.