Green vertical lines on left side of phone

This is a hardware issue. Schedule an appointment at your Apple Store Genius Bar for evaluation and options.

You're looking at a screen replacement. It will cost $279.

See this link --> iPhone Screen Repair & Replacement - Official Apple Support

Shawn7289 Said:

"Green vertical lines on left side of phone: Today my phone started showing Green vertical lines on left side of phone. I tried reset, restart and everything recommended but nothing seems to be working or removing the lines. Please help."

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Just for Thought:

Purchasing it form Apple:

If you do go about getting a new iPhone, get it from none other than the manufacturer: Apple. That way, you can avoid scams from sellers that have an item like this to sell. "A Damaged Device" is a commonly-reported scam on these forums (nothing anyone on here can do about, though). So, just keep that in mind, when it comes to getting a new iPhone in time-to-come.