If your iPhone won’t start, charge for 30 minutes, force restart, then try recovery mode or DFU with a computer.
If you pressed the Side button and nothing happened, don’t panic. Power issues are usually simple: dead battery, cable trouble, or a software crash. This guide walks you through a clear ladder of fixes, from the quick wins to deeper repairs. You’ll also get model-specific button combos, safe charging tips, and when to hand it over to a technician.
Fast Fixes That Solve Most Boot Problems
Work step by step. Stop once the phone wakes or the Apple logo appears.
| Step | How | When It Helps |
|---|---|---|
| 1) Charge First | Plug into a wall charger for at least 30 minutes. | Battery is flat or too low to boot. |
| 2) Swap Cable/Brick | Use an MFi/Apple cable and a known-good adapter. | Bad cable, weak adapter, or flaky port. |
| 3) Inspect Port | Check Lightning/USB-C port with a light; remove lint gently. | Debris blocks charging or data pins. |
| 4) Force Restart | Use the button combo for your model (see below). | System crash or frozen screen. |
| 5) Try A Different Outlet | Move to a direct wall socket; avoid low-power hubs. | Power strip or hub can sag under load. |
| 6) Cool Or Warm Gently | Let the phone reach room temp; then power again. | Extreme heat or cold can block charging/boot. |
| 7) Recovery Mode | Connect to a computer and reinstall iOS without erasing if possible. | Corrupted system files or failed update. |
| 8) DFU Restore | Deeper reinstall through a computer when recovery fails. | Boot loop, stubborn firmware errors. |
| 9) Service | Book a repair if buttons, battery, or board may be damaged. | Liquid, impact, or failed parts. |
Why An iPhone Stays Black Or Stuck On The Logo
Most no-boot cases come down to a few causes. A flat battery can drop below the level needed for startup. A worn cable or dusty port prevents clean power. Software can also lock up after an app crash or a half-finished update. Less often, liquid or impact leaves the device unable to pass its own checks.
Before you jump to the deep fixes, make charging rock solid: a short, good cable, a name-brand adapter, and a direct wall outlet. Give it time. If the screen stays dark, move to the button combo for a force restart.
Force Restart Steps By Model
A force restart doesn’t erase data. It just cuts power to the stuck state and boots fresh. Use the combo for your device.
iPhone 8, X, XR, XS, 11, 12, 13, 14, 15, 16 (and later)
- Press and release Volume Up.
- Press and release Volume Down.
- Press and hold the Side button until the Apple logo appears.
iPhone 7 / 7 Plus
- Press and hold the Side (or Top) button and Volume Down together.
- Keep holding until the Apple logo appears.
iPhone 6s / 6s Plus / SE (1st gen)
- Press and hold the Home and Side (or Top) button together.
- Keep holding until the Apple logo appears.
If the combo does nothing, try again while connected to power. If your Side or volume buttons are damaged, skip ahead to the computer-based recovery.
Charging Checks That Matter
When iphone won’t start, charging is step one. Give the phone a steady source for half an hour. If the red battery icon flashes, keep waiting. If nothing appears, swap the cable and adapter. Try a USB-C PD charger rated 18W or more. Avoid low-power laptop ports during early triage.
Shine a light into the port. Lint is common, especially with pocket carry. Use a plastic floss pick or a soft brush. Don’t poke with metal. If you see a liquid alert on connect, stop charging and let the port dry in open air. That message blocks power until the connector and cable are dry to prevent damage.
iPhone Won’t Start Fixes With Steps (And When To Use Them)
This section stacks computer-based methods. Try them in order. Keep the phone on a cable during each step.
Recovery Mode: Reinstall iOS With A Computer
This reloads the system while trying to keep your data. You’ll need a Mac with Finder or a Windows PC with iTunes. Connect the cable, enter recovery, then choose Update. If update fails, choose Restore to erase and reinstall. Use this when a force restart can’t clear a boot loop or the screen stays black but the device is detected by the computer.
Apple’s guide provides the exact prompts and error paths. Link this step to that page so you can match messages on your screen.
DFU Restore: Deeper Firmware Reload
DFU (Device Firmware Update) bypasses the standard boot loader and pushes fresh firmware. It’s stronger than recovery mode and can revive phones stuck on the logo or trapped in a loop. You’ll need the correct button-press timing while the phone is cabled to the computer. Once in DFU, your screen stays black; Finder or iTunes will show a device that needs to be restored. Run the restore and wait for the full install to finish. Use this when recovery mode won’t start or fails midway.
When Liquid Gets In The Way
Newer models handle splashes, but connectors still react to moisture. If you saw a liquid alert, unplug at once. Hold the phone with the port down and tap it gently to clear drops. Leave it in a dry place with some airflow. Skip rice. Avoid heat guns, hair dryers, or compressed air. Try charging again later. If the alert keeps returning after a day, seek service.
Computer Steps: Exact Moves
Here are the button timings while the phone is attached to the computer. Keep a steady hand; timing matters.
Enter Recovery Mode
- iPhone 8 and later: Press and release Volume Up, press and release Volume Down, then hold Side until the recovery-mode screen appears.
- iPhone 7 / 7 Plus: Hold Side and Volume Down until the recovery screen appears.
- iPhone 6s / SE (1st gen): Hold Home and Side (or Top) until the recovery screen appears.
Once Finder or iTunes shows the dialog, choose Update first. If that fails, use Restore.
Enter DFU Mode
- iPhone 8 and later: Quick press Volume Up, quick press Volume Down, then hold Side for 10 seconds. When the screen goes black, keep holding Side and also hold Volume Down for 5 seconds. Release Side but keep holding Volume Down for another 10–15 seconds. The screen stays black; the computer should detect DFU.
- iPhone 7 / 7 Plus: Hold Side and Volume Down for 8 seconds. Release Side and keep holding Volume Down for 10–15 seconds.
- iPhone 6s / SE (1st gen): Hold Home and Side for 8 seconds. Release Side and keep holding Home for 10–15 seconds.
If the Apple logo appears, you held too long. Start again. Once DFU is detected, run the restore.
Common Triggers And The Fix That Matches
Match the symptom to the likely cause and skip to the right remedy.
- No response at all: Battery too low, dead cable, or bad adapter. Charge longer and swap power gear.
- Stuck on the Apple logo: System files corrupted. Force restart, then recovery mode.
- Screen glows faintly, no logo: Crash or display fault. Try a force restart; then computer steps.
- Liquid alert on plug-in: Moisture in the connector. Unplug and air-dry before any new attempt.
- Buttons don’t click or feel mushy: Hardware wear. Go straight to a computer restore or service.
Second Reference Table: Buttons And Combos By Model
| Model Family | Force Restart | Recovery Entry |
|---|---|---|
| iPhone 16 / 15 / 14 / 13 / 12 / 11 / X / XR / XS / 8 | Vol Up → Vol Down → hold Side | Same combo; keep holding Side past black screen to the cable-to-computer screen |
| iPhone 7 / 7 Plus | Hold Side + Vol Down | Keep holding until recovery screen appears |
| iPhone 6s / SE (1st gen) | Hold Home + Side/Top | Keep holding until recovery screen appears |
Safety Notes For Charging And Ports
USB-C and Lightning ports wear over time. Loose cables cause heat and dropouts. If the plug wiggles or charges only at odd angles, try a fresh cable. If a liquid alert appears, let the connector dry before you apply power again. Charging while wet can corrode pins and make the next boot fail.
When storage is nearly full, installs can stall. Leave a little headroom after you’re back in. Photos and large videos are easy wins; move a batch to a computer or cloud and free space in one sweep.
When To Seek A Technician
Book service when these signs show up:
- Force restart, recovery, and DFU all fail.
- The phone shuts off during charge or gets hot while idle.
- Buttons don’t register or stick down.
- After liquid contact, it boots once then fails again.
Back up as soon as the device starts. Use iCloud or a computer backup. If you hit repeated stalls during backup, try safe mode steps again, then back up right away.
Prevention Tips That Make The Next Boot Easy
- Keep a known-good cable in your bag. Cheap cables fail at the worst time.
- Update iOS on Wi-Fi with 50%+ charge. Low battery during an update risks a bad install.
- Leave 10–15% free storage. Room for temporary files keeps installs smooth.
- Use a case with safe button clearance. Some cases press or block buttons.
- Dry the port before charging after a spill. Let air do the work.
- Know your combo. Practice the force-restart buttons so you can act fast.
Model ID And Button Layout
If you’re unsure which combo fits your device, check the model name in Settings when it’s up and running, or match the button layout. Side-button phones use the three-press method. Older Home-button phones use the two-button hold.
One-Page Action Plan
Here’s the short path you can follow next time iphone won’t start:
- Plug into a wall charger for 30 minutes.
- Force restart with the right combo.
- Swap cable and adapter; inspect and clean the port.
- If stuck, connect to a computer and enter recovery mode; choose Update.
- If recovery fails, enter DFU and restore.
- If issues persist, book service and back up as soon as it boots.
Helpful Official References
Use these during the computer steps so you can match the screens you see. They cover the exact buttons, prompts, and error codes. They also explain safe handling when moisture gets detected by the connector.