Hi guys i would like to seek your help if anyone of you experience same problem with my samsung galaxy s3. A thick black line just appeared in the screen and It would not disappear even I restart and take out the battery of my phone. I did not fell or smash the vertical just appeared while I'm scanning my gallery and does not disappear from my screen. What seems to be the problem of my phone is this hardware or software related? My phone is just 1 month old that's why I'm wondering what is the problem of this. Thanks in advance!