Why did my iPhone screen go completely black?

There are a few common reasons why an iPhone screen may suddenly go completely black and unresponsive. Here are some quick potential causes and solutions:

Software Issue

A software glitch or app freezing could cause the screen to freeze and turn black. Try hard resetting the iPhone by pressing and holding the Power and Home buttons together until the Apple logo appears. This will force the phone to restart and resolve any software bugs.

Display Failure

If the screen went black during use, it may be due to a display failure or issue with the LCD or OLED display panel. This would require screen replacement by Apple or a repair shop.

Battery Failure

An sudden black screen can also point to battery failure, especially if the battery was already low before the issue occurred. Attempting a hard reset doesn’t help. The battery would need to be replaced in this case.

Logic Board Failure

The iPhone logic board controls all functions, including powering the display. If it malfunctions, it could cause a black screen. Logic board issues require board replacement/repair.

Water Damage

Water exposure could short circuit iPhone components and cause display failure. Opening the phone and drying components thoroughly may fix it. Severe water damage requires professional repair.

Faulty Proximity Sensor

A faulty proximity sensor can mistakenly think the iPhone is held close to your face during calls, turning the screen off. A sensor replacement would be needed.

Jammed Power Button

A jammed or defective Power button could be constantly triggering the iPhone to power off and lead to a black screen. Try hard reset first, if not fixed, the Power button would need replacing.

Software Update Issues

Bugs or issues with an iOS software update could also lead to display failure and black screen problems. Hard reset first and try updating or restoring the iPhone using a computer.

Hardware Age/Damage

With older iPhones, general wear and tear on hardware like the display over time can cause it to fail and go black. Physical damage like cracks can also spread and affect screen function.

Common Causes of an iPhone Black Screen Summary

Cause Solution
Software glitch/app freezing Hard reset iPhone
Display failure Screen replacement
Battery failure Battery replacement
Logic board failure Logic board repair/replacement
Water damage Dry components/professional repair
Faulty proximity sensor Proximity sensor replacement
Jammed power button Power button replacement
Software update issue Hard reset, iOS restore
Hardware age/damage Screen/hardware replacement

Performing a Hard Reset to Troubleshoot

As mentioned, one of the first steps to troubleshoot a black iPhone screen is performing a hard reset. Here are the steps:

  1. Press and hold the Power button and Home button down together.
  2. Keep holding both buttons until you see the Apple logo appear on the screen.
  3. This forced restart will clear any minor software glitches that may have caused the issue.
  4. If the hard reset fixes it, your iPhone should now be working normally.
  5. If the screen remains black, move on to investigating other potential hardware causes.

When to Try Restoring iPhone Using a Computer

If a hard reset does not resolve your iPhone’s black screen, the next step is to connect it to a computer and try restoring it. Here’s when you should attempt this:

  • If the black screen happened after a iOS software update – restoring can fix update bugs
  • If you recently installed apps before the issue arose – can help clear problem app
  • If it still won’t turn on after hard reset – ruling out software cause
  • If your iPhone is also slow/laggy/unresponsive – may improve performance
  • If you have backed up your iPhone data recently – easy restore after

Restoring an iPhone using a computer will wipe it completely clean and reinstall the latest iOS software version. This corrects any software issues causing black screens, but erases your data. Only do this if you have a recent backup.

When to Get Professional iPhone Repair Service

If neither hard reset nor restoring your iPhone software fixes the black screen, it likely points to a hardware problem that requires repair service. Here are some indicators to take it to a repair shop:

  • Display remains black or distortion after resets/restores
  • You see visible screen damage like cracks or dead pixels
  • It happened after a drop/impact which could cause internal damage
  • Your iPhone feels very hot to the touch
  • The black screen is accompanied by other issues like no sound
  • You notice flickering or flashing lights before it went out
  • It started after getting wet or exposure to liquids

Repair shops like Apple and Authorized Service Providers can run diagnostics tests, open up your iPhone, check components like display connectors, and determine exact fixes needed. Costs vary depending on specific repair needs.

Preventing iPhone Black Screen Problems

Here are some tips to help prevent your iPhone from having a black screen failure:

  • Keep your iPhone away from moisture and liquids to prevent water damage
  • Use a protective case and screen protector to prevent cracks if dropped
  • Update to latest iOS version to fix any software bugs
  • Avoid opening suspicious links/emails to prevent malware
  • Only install apps from trusted developers and the App Store
  • Set your auto-lock time to a shorter duration to prevent screen burn-in
  • Avoid exposing your iPhone to extreme hot or cold temperatures
  • Replace old batteries to maintain voltage input for components

While occasional software glitches may cause black screens, most of the time it is due to physical damage or component failure. By taking protective measures and handling your iPhone with care, you can help prevent costly screen repairs down the road.

iPhone Black Screen Troubleshooting Flowchart

Here is a quick flowchart summarizing the main steps to troubleshoot and fix an iPhone with a black screen:

  1. Try hard resetting the iPhone using the Power and Home buttons.
  2. If hard reset fixes it, issue was minor software glitch.
  3. If still black screen, connect iPhone to computer and try restoring iOS.
  4. If restore fixes it, software bug or bad app was likely cause.
  5. If screen remains black, have iPhone assessed for hardware repair service.
  6. Repairs required may involve screen, battery, logic board, etc.

This simple sequence helps isolate whether a black screen is due to software or hardware faults, guiding you to appropriate solutions.

Cost Estimates for Common iPhone Repairs

If hardware issues are causing your iPhone to have a black screen, here are estimated repair costs for some common fixes:

Repair Type Estimated Cost
iPhone Screen Replacement $100 – $300+ depending on model
iPhone Battery Replacement $50 – $100+
iPhone Logic Board Repair $100 – $350+
iPhone Charging Port Fix $50 – $120+
iPhone Volume Button Fix $30 – $80
iPhone Back Glass Replacement $100 – $300+

Costs vary based on your iPhone model, repair shop, and any other components that need to be replaced in the process. Apple charges premium rates while third-party shops offer cheaper pricing.

DIY Repair Considerations

With the necessary skills, you can attempt common iPhone repairs like screen or battery replacement yourself. Here are some things to consider:

  • DIY iPhone repair saves money but has risks like damage if done improperly
  • Replacement iPhone parts are available from sites like iFixit
  • Watch in-depth repair video tutorials before attempting
  • Use proper tools like pentalobe and Phillips screwdrivers
  • Be very careful when removing and installing delicate connectors
  • Double check cables are connected properly before reassembling
  • Thoroughly test iPhone before normal use after repair

With patience and care, iPhone users comfortable with tech can DIY common fixes – but for critical repairs like logic board, it’s safest to go professional.

Questions to Ask Before iPhone Repair

To ensure you get quality iPhone repair service, ask the following questions upfront:

  • Do you have experience fixing this specific issue – black screens, etc?
  • Will you run diagnostics to isolate cause if unknown?
  • What testing do you do to confirm fix after repair?
  • Do you provide any warranty or guarantee on the work done?
  • Do you use official Apple parts for iPhone repairs?
  • How long will the repair take and when can I expect it back?
  • Will any data or personal info be wiped out or accessed?
  • Do you offer loaner phones during the repair process?

Reputable shops will readily answer these questions to assure you of their quality and service standards. Avoid shops making suspicious claims or pushing you to rush into a repair.


In summary, there are a variety of potential causes whenever an iPhone screen goes completely black. Methodically trying hard resets, software restores, examining the phone physically, and isolating variables can help pinpoint whether software bugs or hardware faults are to blame. For DIYers, common hardware fixes like screen and battery replacement are doable with care. But for anything beyond that, seeking professional and certified repair shops is advised. With persistence and patience during troubleshooting, an iPhone black screen issue can eventually be resolved.