yes I've had 3 small almost like blisters on the screen, don't rub it or you will end up with a hole in the screen as I now have. I'm yet to hear back off Samsung about it. I'm puzzled as I was watching stuff on YouTube everything was fine. had it on charge while i slept, picked it up when I woke to find the blister like marks. At first I thought it was just something on the screen but when I rubbed it to get one off a hole appeared. I've seen people have had similar problems with the camera lense glass
They appeared in random places 2 to the lowe left side about cm in and 1 near the volume buttons. I've not heard off samsung but I didn't realise it came with a screen protector and its only on that the screen underneath appears to be fine. Keep at them as it seems to be becoming quite common
So.....this was right! The factory fitted screen protector is nearly impossible to see (or peel off). You have to start from the bottom corner (found a YouTube video). Could hardly believe myself that there was still a screen protector on. But eventually removed it, and the blister is gone. Bought a new screen protector and fitted, not back to normal.
