Green line on Display

You can easily determine if you have a hardware or software issue. A reliable method to confirm a screen or other hardware fault is to take a screenshot when the fault is evident - and then review the captured screenshot image...

When reviewed, if the line(s) are not present in the screenshot image, then you have demonstrated that you have a hardware fault that, sooner or later, may become sufficiently severe that repair or replacement of the iPhone are the only options. If the lines are visible in the screenshot, then something other than hardware will be the cause.

Note: The screenshot image may need to be viewed on a different device/screen. Reviewing the image on a different device will ensure that the image does not coincide with screen defects if present.

Take a screenshot on iPhone - Apple Support

If the test indicates that a hardware fault (as, given your description this is perhaps likely) a visit to the Genius Bar at your local Apple Store is recommended - where the technicians will be able to test and assess your iPhone. This will likely inform your next steps:

Genius Bar Reservation and Apple Support Options - Apple

Apple Service and Repair for iPhone - Apple Support

First, try a forced restart. If that doesn't work take it in to the Apple store to have it looked at.

• Press and quickly release the volume up button

• Press and quickly release the volume down button

• Press and hold the side button.

• When the Apple logo appears, release the button.

Force restart iPhone - Apple Support (IN) Force restart iPhone - Apple Support (IN)

Make an appointment at the Genius Bar to have it diagnosed.

Genius Bar Reservation and Apple Support Options - Apple Genius Bar Reservation and Apple Support Options - Apple

Welcome and thank you for reaching out. 🤗

There appears to be a problem with the internal display panel. Only a certified Apple technician can determine the cause and offer a complete solution.

Therefore, I recommend service.

Service Checklist:

• iPhone service pricing.
• Check AppleCare Coverage.
• Get your iPhone ready for service.

Service Appointment:

• Start a Service Request.

Contact Information:

• United States: 1-800-APLCARE.
• Contact Support.

Additional Support:

• iPhone Support.
• iPhone User Guide.
• Check Repair Status.

Good luck! 👋🏼😉

Smiliñ 😎 Brian | Community Volunteer

anant1516 wrote:

But Green line occurred after updating to ios 27, so why Apple released this update for 14pro max if it’s not compatible to process this update

This question makes the wrong conclusion that everyone who updated to iOS 27 has the same issue. If that was true, this forum would be blown up with people complaining, but it's not. The tech press would be all over this, but they're not.

Sometimes, when hardware is heading to failure, an update can push it over the edge. iOS 27 didn't cause your screen to fail. But it likely helped push it faster to failure and it would have ultimately failed regardless of whether you updated or not at some point.

You can argue this all you want. It doesn't change the fact that your screen has failed and needs to be replaced. Arguing this is just wasting your time and ours, either get the screen replaced or buy a new phone and move on.

Make an appointment at the Genius Bar to have it relaced

.

Genius Bar Reservation and Apple Support Options - Apple

Ok, then take it to a Genius Bar or authorized service center.

as Per previous reply its hardware fault

Force restart didn’t worked

Green line is not visible in screenshot

What have you learned from the previous replies, if the green line is not visible in the screenshot?

But Green line occurred after updating to ios 27, so why Apple released this update for 14pro max if it’s not compatible to process this update

So you agreed that ios update was one of the reason for this issue ?

anant1516 wrote:

So you agreed that ios update was one of the reason for this issue ?

NOPE. That's NOT at all what I suggested. What I said was your screen was going to fail regardless.

Without any sign how can screen was about to fail

Any updates ?