Likely causes
- The battery is deeply discharged and needs more time
- iOS is frozen and requires a forced restart
- The screen is not displaying even though the phone is running
- The cable, adapter, port, or battery is failing
Quick checks, in order
Leave it connected for 30 minutes
Use a known-good cable and adapter connected directly to a wall outlet.
Force restart the iPhone
Use the force-restart sequence for your model while it remains connected to power.
Check for signs of life
Call the phone, connect it to a computer, and listen for sounds or vibration.
Inspect the charging port
Look for visible lint or damage. Do not insert metal objects or liquids.
What happens when you try to start it?
Keep it on power and try a force restart. Repeated looping can require recovery mode or service.
The phone may be running with a failed display or backlight. Arrange display diagnosis.
Try another certified cable, adapter, and outlet. If still unresponsive after 30 minutes, service is likely needed.
Stop and get qualified help when
- The phone is swollen, unusually hot, bent, or smells chemical
- The problem started after liquid exposure or a hard impact
- The charging port is visibly burned or damaged
Frequently asked questions
How long should a fully drained iPhone take to show life?
A deeply discharged battery may need 15 to 30 minutes on a reliable charger before the screen responds.
Can a black screen mean the phone is still on?
Yes. Calls, vibration, computer detection, or notification sounds can indicate a display problem rather than a dead phone.