So I tried with different phones and they don't have these problem. Note 8, iP6s and my iPhone 7.
Well only when there is some light like this city lamp, I have problem but when there is not light (of course) I don't see that dots, because light isn't going directly to sensor.
Lens is crystal clear, no scratches, but I think that maybe inside there are little microscopic dust which isn't by eye visible.
Here are examples:
Well only when there is some light like this city lamp, I have problem but when there is not light (of course) I don't see that dots, because light isn't going directly to sensor.
Lens is crystal clear, no scratches, but I think that maybe inside there are little microscopic dust which isn't by eye visible.
Here are examples:


