iPhone Screen Goes Black Randomly? Fixes and Restore Risks

Charlotte Bayley

Updated: November 2, 2026

"I have an iPhone X, bought less than a year ago. Everything works fine except for one issue: screen randomly goes black , but the phone doesn't turn off. When I press the lock button, the screen locks, and after unlocking, it works normally again. This keeps happening at random intervals. What could be causing this iPhone screen to go black randomly, and how can I fix it?"

iPhone screen goes black randomly

The problem that the iPhone screen goes black randomly during normal use is bothering many people. According to some users, this problem happens when turning the iPhone into landscape orientation, using certain apps, during or after a phone call, or a few minutes after unlocking. So, what's the reason behind this problem and how can you fix it?

Quick answer: If your iPhone screen randomly goes black but the phone stays on, start with a force restart, storage cleanup, and iOS update. If this mainly happens while charging or after charging overnight, see our guide on iPhone screen going black while charging. If the problem started after a drop, water exposure, overheating, or screen replacement, treat it as a possible hardware issue and contact Apple Support or a repair provider.

What you see	Likely cause	Best first step
Screen goes black but audio, vibration, or touch still works	Display glitch, app crash, proximity sensor issue, or system bug	Force restart, update iOS, and test without the case or screen protector
Screen slowly dims instead of turning fully black	Brightness, Auto-Brightness, Low Power Mode, or overheating	Check display and battery settings, then let the iPhone cool down
Black screen with spinning wheel or repeated restart	System crash or boot loop	Try force restart, then use recovery mode or iOS repair if needed
Black screen after drop, water damage, or screen repair	Likely hardware or display cable damage	Stop software fixes and get the device inspected

Notice:

Hardware faults can occur without visible damage or a recent drop. Sound or vibration while the screen is black does not prove a software cause. If the fault persists or the display flickers, shows lines, or responds inconsistently, arrange a hardware inspection.
If possible, back up your iPhone before trying repair or restore methods. A backup is especially important if the screen issue is getting worse.

1. Force restart the iPhone
2. Free up storage
3. Update iOS software
4. Fix iPhone with iSumsoft iOS Refixer
5. Restore iPhone to factory settings

1. Force restart the iPhone

When your iPhone encounters some minor problems (like the screen going black randomly) but still works, force restart (or hard reboot) is the first solution you should try. A forced restart will close all running apps, release memory, and refresh the system. This helps repair some problems and won't cause any data loss on the device. To force restart your iPhone, follow the steps below according to your model. You can also check Apple's official force restart guide.

iPhone 8/later Press and quickly release the Volume Up button. Press and quickly release the Volume Down button. Then press and hold the Power button until the Apple logo appears.

iPhone 7 Press and hold the Power and Volume Down buttons at the same time until the Apple logo appears.

iPhone 6s/earlier Press and hold the Power and Home buttons at the same time until the Apple logo appears.

2. Free up storage

If the screen is usable, check Settings > General > iPhone Storage. Low storage can interfere with normal operation or updates, but a particular free-space value does not diagnose a black screen. Review Apple's storage recommendations and remove only data you no longer need. See Apple's storage guidance.

check storage

3. Update iOS software

If the problem continues, check for an available compatible iOS update. An update may address a software bug, but it will not repair a hardware fault. Back up first if possible and follow Apple's update instructions.

Step 1 Go to Settings > General > Software Update.

Step 2 iPhone will start checking for update and then display the latest iOS version on the screen.

Step 3 Tap Download and Install to start updating the iPhone.

update ios

4. Fix iPhone with iSumsoft iOS Refixer

iSumsoft iOS Refixer is an optional paid tool for supported software faults after you have considered Apple's troubleshooting and update options. Check current device compatibility and trial restrictions before purchasing. It cannot repair display or other hardware damage.

Repair mode and data-loss warning

Standard Mode is designed to preserve data; repair and data preservation are not guaranteed.
Advanced Mode deletes all data on the connected iPhone. Do not switch modes automatically after a failure. Back up first if possible, or seek support if unbacked-up data is irreplaceable.

The existing screenshots illustrate an older interface and do not establish a current-version device test.

Before using any repair tool, back up your iPhone if the screen is still usable. If you do not want to use iTunes or iCloud, see how to back up iPhone without iTunes or iCloud.

iSumsoft iOS Refixer

Powerful iOS System Repair Tool

Standard Mode is designed to preserve data; repair results vary.
Advanced Mode deletes all data on the connected device.
Check the current device, system, and computer requirements before purchase.
Paid software for supported software faults, not hardware repairs.
Available repair functions depend on the installed version and device.

FREE DOWNLOAD FREE DOWNLOAD

Step 1 Download and install the iSumsoft iOS Refixer on a PC with iTunes installed. After installation, launch this tool, but you don't need to launch iTunes.

Step 2 Select Standard Mode from the main interface of the software and on the next page, click Start to proceed.

select Standard Mode

Step 3 Now connect the iPhone of which screen goes black randomly to the PC using a USB cable, and then click Next. Then the software will recognize the iPhone and load its device info.

click next

Step 4 Click Download to download the new firmware required to repair the iOS system. The download time depends on the firmware size and your connection.

Tips:

To ensure that the download goes smoothly, make sure that your PC is connected to the internet and that the save path has enough free space for the device-specific firmware package.

click download

Step 5 Everything is ready. Now click Repair. The software will begin the selected repair. Keep the iPhone connected and wait for the result. Standard Mode is intended to preserve data, but no repair result is guaranteed.

click repair

Step 6 When the software informs that the iPhone has been repaired successfully, let the iPhone restart, then use it for a while to confirm whether the random black screen problem is gone.

iPhone is repaired

5. Restore iPhone to factory settings

Factory restore is an optional last resort for a suspected software problem, not a required step before asking for service. It deletes all data, apps, and settings. Back up if possible; if you cannot back up irreplaceable data, seek support before erasing. Hardware symptoms are a reason to arrange inspection instead. Follow Apple's computer restore guidance.

If the iPhone remains unresponsive, follow Apple's recovery-mode guidance. If you have not tried Update, try that option before Restore; it attempts to reinstall iOS while keeping data.

Step 1 Connect the iPhone to a Mac or to a Windows PC. On newer Windows setups, use the Apple Devices app. If Apple Devices is not installed, use iTunes.

Step 2 If recovery mode is required, follow the model-specific button sequence. Continue holding until the connect-to-computer screen, rather than stopping at the Apple logo.

Step 3 Finder, Apple Devices, or iTunes will show an option to update or restore the iPhone. Try Update first if you have not already tried it. Choose Restore only after accepting that all unbacked-up data will be lost.

restore iPhone

Tips:

Many times, restoring the iPhone helps fix software-related problems. But sometimes restore can fail. If the restore fails or the screen still goes black afterward, the device may need a deeper iOS repair or a hardware inspection.

FAQs about iPhone Screen Going Black Randomly

Why does my iPhone screen go black randomly but the phone stays on?

This usually points to a temporary iOS glitch, app crash, display setting, proximity sensor problem, or a display-related hardware issue. If this happens specifically when putting the phone to your ear or taking it away, see why iPhone screen stays black during calls. If audio, vibration, or touch still works while the screen is black, start with software fixes. If it began after a drop, water exposure, or screen repair, have the device inspected.

Will a force restart delete my iPhone data?

No. A force restart only refreshes the system and does not erase photos, messages, apps, or settings. If the device responds normally, try a normal restart; use a force restart when it is unresponsive.

Is this the same as iPhone screen dimming?

No. Random black screen usually means the display turns off or stops showing content. Screen dimming is often caused by Auto-Brightness, Low Power Mode, overheating, or display settings. If your screen only gets darker, see the guide for iPhone screen keeps dimming.

Should I restore my iPhone before asking for repair?

Try restore only after backing up your data and trying safer fixes. If the iPhone has visible damage, water exposure, screen lines, flickering, or a recent display replacement, software restore may not help and a hardware inspection is more appropriate.