How to Fix iPhone 11 Black Line on Screen

Having a black line on the screen of your iPhone 11 can be quite annoying and obstructive for daily usage. For users who experience this issue, it is crucial to identify the root cause of the problem and possible solutions to fix it. In this article, we will discuss various software and hardware methods that can help address the iPhone 11’s black line on screen.

Causes of Black Line on Screen

Before discussing the fixes, let’s understand the possible reasons behind the appearance of a black line on your iPhone 11 screen:

Accidental Damage

A common cause is accidental damage to the screen, such as a drop or bump. These incidents may result in internal malfunctions leading to visible screen issues like black lines or black screen.

Electro-Static Discharge

Excessive Electro-Static Discharge (ESD) may cause black lines to appear even if there’s a good connection between flex cables and the logic board.

Hardware Problems

iPhone screens are composed of several intricate components. Any issue related to the display hardware like a malfunctioning LCD panel or internal connectors can lead to black lines on your iPhone 11 screen.

Software Glitch

In some cases, a software bug or glitch might be responsible for the appearance of black lines on your device’s screen.

Software Solutions for Black Line on Screen

If you suspect that a software issue is causing the problem, try these software solution methods:

1. Restart Your iPhone

A simple restart can eliminate minor issues and temporary glitches affecting your device. To restart your iPhone 11:

  • Press and hold either of the volume buttons and the side button until you see Power Off slider.
  • Drag it from left to right and turn off your device.
  • After waiting for about 30 seconds, press and hold the side button again until you see the Apple logo.

2. Update iOS

Keeping your device up-to-date can fix bugs and glitches that may be causing black lines on the screen. To update your iPhone 11:

  • Open the Settings app and tap General.
  • Select Software Update and check for available updates.
  • If an update is available, tap Download and Install to initiate the updating process.

3. Force Restart Your iPhone

If a regular restart didn’t solve the issue, you might need to force restart your iPhone 11. Follow these steps to do so:

  • Quickly press and release the Volume Up button.
  • Quickly press and release the Volume Down button.
  • Press and hold the Side button until the Apple logo appears.

4. Repair System without Data Loss

You can use professional software like PhoneRescue for iOS to repair your system without losing any data. Follow the instructions provided by the software to repair your device’s glitches effectively.

5. Factory Reset Your iPhone

If none of these software solutions work, try factory resetting your device. Make sure you backup all your important data before doing this. You can either reset your iPhone using the Settings app following these steps:

  • Open Settings and tap General.
  • Scroll down and tap Transfer or Reset iPhone.
  • Tap Erase All Content and Settings.

Or, you can use iTunes to reset by connecting your iPhone to a computer, selecting your device in iTunes, then clicking Restore iPhone in the summary panel.

6. Use DFU Mode to Restore Your iPhone

As a last resort, you can put your iPhone into DFU (Device Firmware Update) mode to restore it fully. Remember that this will erase all data from your device. Here’s how to put your iPhone 11 in DFU Mode:

  • Connect your device to a computer running iTunes via USB cable.
  • Press and release Volume Up, then Volume Down buttons.
  • Press and hold the Side button until the screen goes black.
  • Without releasing the Side button, press and hold the Volume Down button for a few seconds. Then release only the Side button.
  • Keep holding the Volume Down button until your device appears in iTunes. Your device is now in DFU Mode.

Hardware Solutions for Black Line on Screen

If none of these software fixes resolves the issue, it could be related to hardware damage. In this case, you can:

Repair or Replace the Display LCD Screen

Visit an Apple Store or an authorized service provider to get your screen repaired or replaced. Depending on whether your device is covered under warranty or not, you might have to bear additional costs.

Before Fixing Black Line on iPhone Screen

Always backup your data before attempting any of the solutions mentioned above, as some methods may result in data loss. You can use iCloud or iTunes to back up all essential data such as photos, contacts, and more.

By addressing both software and hardware issues, you can restore your iPhone 11’s screen to its optimal functionality. We hope this article helps you fix any instances of a black line appearing on your iPhone 11 screen and allows you to maintain an uninterrupted user experience.


  1. Can a third-party screen protector cause black lines on my iPhone 11 screen?

    Yes, a low-quality or damaged screen protector might cause black lines to appear on the screen. If you suspect that your screen protector is causing the issue, try removing it and see if the lines disappear. Use a high-quality screen protector to protect your device’s screen without causing any issues.

  2. How long does it usually take for an Apple Store to repair or replace an iPhone 11 screen with black lines

    The time required for repairing or replacing an iPhone 11 screen depends on various factors, including the availability of replacement parts and technicians. Basically, it can take anywhere from an hour to a few days. It is best to contact your local Apple Store or authorized service provider to get an estimated timeline for the repair.

  3. Will fixing the black line issue void my iPhone’s warranty?

    If you follow the software solutions provided in this article, your iPhone’s warranty should remain intact. However, attempting any unauthorized hardware repairs or using third-party components might void your warranty. To ensure that your warranty remains valid, always seek assistance from Apple Support or an authorized service provider for hardware issues.

  4. What should I do if my iPhone 11 is still under warranty and has developed black lines on the screen?

    If your iPhone 11 is under warranty and experiencing black lines on its screen, you should immediately contact Apple Support or visit an Apple Store or authorized service provider. They will assess the issue and suggest appropriate solutions. If the problem is under warranty, they will repair or replace your device at no additional cost.

  5. Are there any preventive measures I can take to avoid black lines from developing on my iPhone 11 screen in the future?

    While you cannot completely prevent hardware issues from occurring, you can minimize their chances by taking proper care of your iPhone. Always use a high-quality screen protector, avoid extreme temperatures, keep your device away from water and moisture, and update your iOS regularly to fix any software glitches that may potentially cause black lines on the screen. Additionally, handle your device with care to avoid accidental drops or bumps that could lead to internal damage.

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