I have Samsung A06, I've noticed a weird blinking red light at the top right corner of my phone (Not on the Display) just above where the Wifi Symbol would appear and I know it is not a pixel problem as it doesn't appear on the display and as the blinking light would only appear when I turn on my phone and it just disappear until I turn on my phone again. Also, it is pretty distinct as one can only notice it in a dark room.
