If you’re experiencing issues with your iPhone X, it’s best to bring it back to the store. Just like what some users are doing with the new Apple iPhone. Some units seem to be displaying a green line running vertically across the side of the display. It doesn’t show up immediately, instead it manifests after a while. GSMArena speculates the issue could be because of the display controller or because of a ribbon cable connecting the screen. We can’t say how widespread the issue is but hopefully it isn’t as far-reaching. Although with Apple adopting OLED for its phone for the first time it doesn’t come as a surprise to us that there are some issues with it. Apple hasn’t commented on the issue yet but those who did experience it were able to get their phones replaced under warranty.