1. iMore Question's Avatar
    The red line appeared after my husband, who is not familiar with an iPhone, tried to use the camera.
    11-12-2015 07:37 PM
  2. robertk328's Avatar
    Welcome to iMore!

    I am not sure I've ever seen a red line running down the screen that didn't indicate some sort of problem. I would try rebooting the phone by holding the Home and Power buttons for about 10 seconds until the Apple logo appears. If that doesn't help, perhaps a trip to the Apple store will be in order as it sounds like something else may be wrong.

    Good luck!
    11-13-2015 05:29 AM

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