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iPhone Screen Has Green Lines, Flickers or Won’t Respond to Touch?

Lines across the screen, flickering and touch problems are some of the most common things we see. Some can be fixed with a restart; most lines cannot. Here is how to tell.

  • Updated October 2026 · iFix technicians, Klang
iPhone Screen Has Green Lines, Flickers or Won’t Respond to Touch?

What usually causes it

Green, pink or white vertical lines almost always mean the display panel itself is damaged — often after a drop or pressure in a pocket or bag. The lines can appear days after the drop, and they usually spread.

Flickering, ghost touch or touch not responding can be the screen, the display connector inside, or occasionally software. A restart tells you quickly which one it is.

Screen lifting from the frame is different: the battery behind it may be swollen. Stop charging the phone and bring it in.

Try these first

  1. Force restartPress and release volume up, press and release volume down, then hold the side button until the Apple logo appears.
  2. Update iOSIf the phone works well enough, go to Settings → General → Software Update.
  3. Remove the case and screen protectorA cracked protector or a tight case can cause ghost touches.
  4. Check againIf the lines or flickering are still there after a restart, it is a hardware problem and the screen usually needs replacing.

Stop using it and get it checked if

  • The screen is lifting or bulging — a swollen battery is a safety risk.
  • There is broken glass that can cut your finger.
  • The phone got wet through a cracked screen.
  • The lines are spreading or the screen goes black — back up your photos while you still can.

Screen replacement at iFix

  • Apple genuine screen: about 2–3 hours, 6–12 month warranty depending on model. iFix is an Apple Independent Repair Provider — parts come directly from Apple.
  • High-quality screen: 45–60 minutes, iFix warranty.
  • Price depends on the model — WhatsApp us your iPhone model. We check first and tell you the price before any work.

Questions people ask

Can a green line go away by itself?

Very rarely. A line caused by a damaged panel usually stays and often spreads. If a restart does not remove it, the screen needs replacing.

Is it the screen or the motherboard?

Most of the time it is the screen. Our technician checks first and tells you before doing anything.

Will I lose my data when the screen is replaced?

A screen replacement normally does not touch your data, but please back up first.

What customers say on Google

Our Klang HQ is rated 4.9 / 5 on Google from 1,600+ reviews. Swipe to read more.

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One of the best service, repair my phone within 10 minutes, screen glued. The main point is, this guy even turn on my phone and check if the screen is still working where I just told him to glue my screen to my phone. Very dedicated person. Good environment, clean and friendly conversation.
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Highly recommended, especially the service by Jason done on Oct 2nd. He immediately rectified my broken LED, walked me and allowed me to see the whole fixing process. Was super impressed with their service and transparency.
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Not sure what the problem is?

Send us your phone model and the problem on WhatsApp. We will tell you the options and the price before we do any work.

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