Defining and Fixing iPhone 11 Black Line on Screen

The presence of a black line on the screen of your iPhone 11 can stem from various causes, including physical damage, software glitches, or hardware defects. It’s important to repair because such issues can disrupt normal usage, affect display clarity, and potentially worsen over time.

In this article from Repair Center, we will show you how to fix iPhone 11 black line on screen error as well as understand this common screen error!

Understanding the Black Line Issue on iPhone 11

Based on the information provided, there are a few potential causes for the Black Line Issue on the iPhone 11:

  • Physical Damage:
    • Dropping the iPhone 11 or exposing it to liquid can potentially cause physical damage to the device’s display, leading to issues like the appearance of black lines.
    • Physical damage to the display, such as cracks or scratches, can disrupt the normal functioning of the LCD panel and result in visual artifacts like black lines.
  • Software Glitches:
    • Issues following iOS updates can sometimes introduce software-related problems that manifest as visual glitches, including the appearance of black lines on the display.
    • Compatibility problems or bugs in the software/firmware can occasionally cause display-related issues on the iPhone 11 after software updates.
  • Hardware Defects:
    • The “Black Line Issue” may also be caused by hardware-related problems, such as issues with the LCD panel or pixel damage.
    • Defects in the manufacturing or assembly of the iPhone 11’s display components can lead to malfunctions and the appearance of black lines on the screen.

How to Fix the Black Line on My iPhone 11

A black line on your iPhone 11 can be frustrating, but there are a few things you can try to fix it before resorting to a technician. Here’s how to troubleshoot:

Force Restart iPhone for Screen Line Fix

If you see a black line appear suddenly on your iPhone 11, it might be a simple software issue.  Thankfully, a quick restart can often fix these glitches.  Here’s how to force restart your iPhone 11:

  • Press the Volume Up button briefly, then quickly do the same with the Volume Down button.
  • Next, hold down the Side button until the Apple logo appears on the screen.
  • Keep holding the Side button until the Apple logo appears fully, then let go.
  • Your iPhone will restart normally once the logo disappears.
Force Restart iPhone
Force Restart iPhone

Adjust LCD Screen to Fix Black Line

If you notice that the dark line on your iPhone 11 screen appears to originate from inside the display, gently readjusting the LCD components may help realign any loose connectors.

Here’s how to address a black vertical line on an iPhone 11 screen:

  • Identify the location of the black line on your screen.
  • Apply gentle pressure along the edges and corners near the line.
  • Slowly twist and flex the upper part of the display, avoiding excessive force.
  • Release the tension and observe if the line persists or disappears.
  • Repeat these pressure and adjustment steps across various areas if needed.

Perform a Cycle Charge to Resolve Screen Issue

Inconsistent charging practices can sometimes lead to strange software issues, including screen glitches like black bars. To address this, try cycle charging your iPhone 11: fully drain the battery to 0%, power off the device, then charge it back to 100% with the original charger, avoiding interruptions.

Here’s how to fix horizontal lines on the screen of an iPhone 11:

  • Let your iPhone 11 battery fully drain to 0% and shut off.
  • Connect the original iPhone charger to the phone after it has been turned off.
  • Fully charge it to 100% without interruptions.
  • Once fully charged, force restart the iPhone.
  • Check the display for horizontal lines after the reboot.
Perform a Cycle Charge
Perform a Cycle Charge

Use Professional Tool to Fix iPhone 11 Black Line on Screen [Fastest & Easiest]

If basic troubleshooting steps don’t eliminate the frustrating black line on your iPhone 11 display, using a professional iOS repair tool is your best bet for safely resolving the problem.
UltFone iOS System Repair is recognized for its speed and simplicity in resolving screen glitches such as persistent black bars, along with addressing over 150 other common iOS system issues.

UltFone iOS
UltFone iOS

Enter DFU Mode to Fix iPhone 11 Screen Issues

The Device Firmware Upgrade (DFU) mode is an alternative low-level state that reloads all system components without fully turning on the device. Attempting a DFU mode restore can reset software-related issues such as black lines on the screen.

Here’s how to fix a growing black line on an iPhone screen:

  • Connect your iPhone to a computer via USB cable and open iTunes or Finder.
  • Then, press and quickly release the Volume Up button, followed by pressing and quickly releasing the Volume Down button.
  • Hold the Power button for 10 seconds.
  • Release the Power button but continue holding the Volume Down button for 5 more seconds.
  • If successful, your iPhone will enter DFU mode, ready for an emergency restore.
Enter DFU Mode
Enter DFU Mode

Restore iPhone Using iTunes for Screen Line Fix

As a final option, you can wipe and fully restore your iPhone’s system software using iTunes or Finder. This process will erase all contents and settings, reinstalling a clean iOS build.

Here are the steps:

  • Connect your iPhone to a computer running iTunes or Finder.
  • Next, click on “Restore” on the summary page to begin the restoration process. Follow the on-screen prompts to confirm the erasure and wait for the restoration to finish.
  • Once completed, set up your iPhone again and verify if the black lines on the screen have been resolved
Restore iPhone Using iTune
Restore iPhone Using iTune

Reduce White Point in Settings to Fix Screen Issues

Adjusting the white point can help minimize the visibility of black lines on an iPhone 11 display.

Here’s how:

  • Open Settings and go to Accessibility.
  • Scroll down and tap on Display & Text Size to adjust the settings according to your preferences.
  • Toggle off the white point setting.
Reduce White Point
Reduce White Point

Update iOS Software to Fix Screen Problems

Because the black line may stem from an iOS software glitch, updating to the latest iOS version could potentially resolve display issues.

Here’s how you can update your iPhone to the latest iOS version:

  • Open Settings and go to General > Software Update.
  • Tap on the most recent iOS update available.
  • Tap Download and Install.
  • Follow the prompts to finish installing the latest iOS version.
  • Check the display to see if the black line issue persists after the update.
Update iOS Software
Update iOS Software

Factory Reset iPhone to Remove Screen Line [Data Loss]

If all other methods fail, you can perform a complete factory reset on your iPhone to eliminate any software-related issues causing black lines. This process will delete all data on your device.

Here’s how to do it:

  • First, backup your iPhone data to preserve it.
  • Go to Settings > General > Reset.
  • Tap “Erase All Content and Settings”.
  • Follow the prompts to confirm and initiate the factory reset.
  • After the reset is complete, test the display to check if the black lines issue has been resolved.
Factory Reset
Factory Reset

Frequently Asked Questions about iPhone 11 Black Line on Screen

Why does my iPhone 11 have a black line on the screen?

Based on the information provided on the Phone Repair Centre website, there are a few potential reasons why an iPhone 11 may develop a black line on the screen:

Physical Damage: The black line could be caused by physical damage to the screen, such as a crack or impact. This type of damage can disrupt the internal components and lead to visual issues like a black line.
Software Glitches: Occasionally, software bugs or iOS updates can cause display-related problems, including the appearance of a black line on the screen.
Hardware Defects: There could be an underlying hardware issue with the display assembly or other internal components of the iPhone 11. This could be a manufacturing defect or a problem that develops over time.

Can a black line on an iPhone screen be fixed?

Yes, a black line on an iPhone screen can often be fixed. There are various troubleshooting steps available, ranging from simple restarts to professional repairs, depending on the cause of the issue.

Is the black line on my iPhone screen a hardware issue?

Yes, the black line on your iPhone screen can be a hardware issue, particularly if the line persists even after trying software fixes. This suggests that there may be a physical defect or damage affecting the display. If software troubleshooting steps do not resolve the issue, it is advisable to seek professional assistance to diagnose and potentially repair any underlying hardware problems.

What is the estimated cost for repairing screen lines on an iPhone?

Please visit Repair Centre’s website at for pricing information on repairing screen lines for iPhones. They offer warranty details and further inquiries can be made through their contact options for more details.


To address the iPhone 11 black line on screen, start with basic troubleshooting like restarts and software updates. More advanced steps include DFU mode restores. For persistent issues, consider professional help from authorized repair services. If you need an expert to repair your iPhone 11 screen, contact the Repair Center immediately!