Fix an iPhone that won’t turn on by charging, force restarting, then using recovery or DFU restore before seeking hardware service.
Stuck with a black screen on your iPhone? This guide walks you from fast checks to deep fixes. Start with power and cables, move to a force restart, then use recovery tools if needed. If none of that helps, you’ll know when to seek hardware repair.
The steps below are arranged from easy to deeper. Work in order. You’ll keep data intact until the point where a full restore is required.
Quick Checks Before Deep Fixes
| Check | What To Do | Time |
|---|---|---|
| Charge test | Plug into a known-good wall charger for 30–60 minutes; watch for the battery icon. | 5–60 min |
| Cable/brick swap | Try a different cable and power adapter you know works with another device. | 2 min |
| Port inspection | Shine a light; remove lint with a wooden toothpick or soft brush. | 3 min |
| Case check | Remove thick cases or battery packs that might block buttons or heat vents. | 1 min |
| Wireless pad try | Place on a Qi/MagSafe pad to rule out a broken port. | 5–30 min |
How To Fix iPhone That Won’t Turn On: Step-By-Step
Rule Out A Dead Battery
Connect the phone to a wall charger, not a low-power USB port. Give it up to an hour. If a low-charge icon appears, leave it on power until it starts.
If the screen stays blank, try a new cable and a different outlet. A flaky cable is a common blocker.
Charger And Cable Tips
Use a high-output brick. Avoid laptop USB ports during deep charging. Let the phone cool if it feels warm.
Force Restart By Model
A force restart clears a frozen system without erasing data. The button combo depends on the model. Try this before any restore.
Signs Of Life To Watch For
While the screen looks off, the phone may be running. Plug in headphones or a charger and listen for sounds. Call the phone from another line. If it rings, the display may be the only failed part.
Look near the notch or top edge in a dark room. A faint glow can point to a lit panel with backlight trouble. If taps vibrate or buttons click but the screen stays blank, book a screen repair.
Check The Screen And Buttons
Press the Side or Top button for a count of ten. If you hear alerts or feel taps but see nothing, the display may be off. In bright light, look for a faint image. Screen or backlight repair may be needed.
Make sure buttons move and click. Stuck Volume buttons can block startup combos. Clean around them with a soft, dry cloth.
Try A Wired Restore (Recovery Mode)
If the Apple logo loops or the screen shows a cable and a computer, use recovery mode. Connect to a Mac with Finder or a PC with iTunes. Choose Update first to keep data; if that fails, choose Restore.
Apple explains the basics in the iPhone won’t turn on guide. The steps below follow that flow, with extra detail for tricky cases.
Recovery Mode: Step-By-Step
Update tries to reinstall iOS without erasing data. Restore erases and reloads the system. Start with Update. If it fails, move to Restore.
- Install the latest macOS or the newest iTunes on Windows.
- Connect the phone to the computer with a known-good cable.
- Enter the force-restart combo for your model and keep holding until the recovery screen appears.
- In Finder or iTunes, choose Update. Let the download finish, then wait for the phone to reboot.
- If Update fails or loops, choose Restore to reload iOS from scratch.
DFU Mode: Deeper Restore
DFU bypasses the installed bootloader to reload firmware. Timing matters. Have the cable plugged in and the computer open to Finder or iTunes.
- On iPhone 8 and later: quick press Volume Up, quick press Volume Down, then hold Side for 10 seconds.
- While holding Side, hold Volume Down for 5 seconds, then release Side and keep holding Volume Down for 10 seconds.
- The screen stays black; Finder or iTunes will report a device in recovery. Choose Restore.
- To exit DFU without restoring, force restart the phone.
Water Or Drop Damage Clues
Corrosion near the charging port, green tint on the screen, or fog under the camera glass can follow a splash. Turn the phone off and let it dry before more tests. Do not heat it.
A hard drop can loosen connectors. If the phone buzzes but the display stays off after a fall, a technician can reseat parts or replace a cable or panel.
Power Accessories That Help
Keep one strong wall charger at home and another. A high-output brick shortens deep charge sessions, which helps when a phone has drained flat.
A portable power bank can bring a flat phone to life while you travel. Stick to certified brands and cables.
Force Restart Buttons By Model
| Model Family | Button Sequence | Notes |
|---|---|---|
| iPhone 8 and later | Press and release Volume Up, press and release Volume Down, then hold Side until the logo appears. | Keep holding after the screen goes dark. |
| iPhone 7 / 7 Plus | Hold Volume Down + Side together until the logo appears. | Release when you see the logo. |
| iPhone 6s and earlier | Hold Home + Top/Side together until the logo appears. | Release at the logo. |
What Startup Icons Mean
Battery icon with a thin red line: the phone is too low to start. Leave it on a wall charger until the icon fills and the logo appears.
Cable to computer image: the phone needs recovery mode on a Mac or PC. Use Update first.
Apple logo for many minutes, no progress bar: the system may be stuck. Try a force restart, then recovery.
Model Notes And Quirks
On iPhone with Face ID, the Side button has two roles: Siri and power. When using the force-restart combo, press each Volume button quickly, then hold Side without sliding the power slider.
On older Home button models, make sure the Home button actually clicks. A failed Home button blocks the classic combo, so connect to a computer and try recovery mode instead.
When To Book Hardware Service
If the phone won’t charge, won’t respond to button combos, or only stays on while plugged in, it may have a battery, power IC, display, or logic board fault. At that point, arrange service.
If Finder or iTunes can’t update the phone, use recovery mode steps to reinstall iOS. Pick Update before Restore to try to keep data.
Data Safety Tips While You Troubleshoot
If the phone wakes after a force restart, back up. Use iCloud or connect to a computer and run a full backup in Finder or iTunes.
If you must Restore, pick Update first in recovery mode. If Update fails, a full Restore erases the phone. Your backup brings your apps and data back later.
Backup And Restore Tips
After any restore, sign in to iCloud and let Photos and Messages resync before heavy use. Keep the phone on Wi-Fi and power to speed it up.
If you use Finder or iTunes backups, set the backup to encrypted. That preserves Health data and keychain items.
Charging Gear Checklist
Use a certified Lightning or USB-C cable and a charger that meets Apple specs. Third-party bricks can be fine when certified, but cheap ones can drop voltage under load.
If a wireless pad revives the phone while the cable does not, the port may be worn or dirty. Schedule service to clean or replace it.
When A Third-Party Repair Affects Startup
After a screen or battery swap, mismatched parts can cause boot loops, touch failure, or Face ID errors. If the phone fails to start right after a repair, return to the shop that did the work.
Phones with aftermarket batteries may power off under load. A fresh, quality cell fixes that.
Prevention For Next Time
Keep backups automatic, keep storage free, and allow iOS updates after a fresh charge. Avoid full discharges; shallow charge cycles are easier on lithium-ion cells.
Replace aging batteries before the phone starts to crash under load. Battery Health under Settings shows capacity and service notes.
Small But Real Time-Savers
Let the phone reach room temperature before charging. A cold battery resists charging, and a hot one will pause charging to protect cells. Remove thick cases during deep charging and give the phone clear airflow.
When you start a force restart, keep holding the Side button through the power slider. Wait for the Apple logo, then give the phone two minutes to settle before trying again.
Plug straight into the computer, not through a hub. On a desktop, the rear USB ports draw steadier power. Use certified cables; some cheap cords charge but can’t pass data for recovery.
If you see “Accessory Not Supported” while charging, swap the cable and charger first, then clean the port. Restart and try again. That alert often comes from a loose fit or debris, not a chip issue. If the message returns with multiple known-good parts, the charging port likely needs service. Book a diagnostic at an Apple Store or an authorized provider.
One-Page Fix Checklist
- Charge on a wall outlet for up to an hour.
- Swap cable and brick; check the port for lint.
- Force restart using the right button combo.
- If stuck on logo, connect to a computer and try Update.
- If Update fails, Restore in recovery mode.
- If the phone still won’t start, run a DFU restore.
- Book service for power, display, or battery faults.