[faysal_khan007]

Hello guys. I'm new here. I've galaxy note 3 (n900). Whenever I lock the phone the display flicker at the bottom of screen. There's only one horizontal line. N it is only noticeable in dark room. I'm just worried it might be defective. Can I get any problem related to display in future? When I'm using phone there isn't any problem. But the problem is only when I press lock button. Nobody can notice it in a first use. Thanx for your help.

[B. Diddy]

Hard to say. Is the phone still under warranty? If so, it may be worth contacting Samsung and asking them. Otherwise, I would just keep an eye on it, if the rest of the phone is functioning correctly.