Q: While using Galaxy S20 FE, blinking small hole at the top of the screen appears and light is visible.

A : Galaxy Note20/Note20 Ultra device has minimized the bezel size by applying the Infinity Display.

Due to this minimized bezel, proximity sensor of Galaxy Note20/Note20 Ultra was mounted under the display panel.

When this proximity sensor operates, the light from the proximity sensor may flicker at the top of the device during calls so you can see the small hall which is flicking on the screen due to the proximity sensor operation.

This is a normal operation named as �Photoelectric effect� and is not a device defect.