ProblemDistinguish no charging, a depleted battery, slow charging and a protective pause. Changing cable and adapter together prevents identifying which changes the result; use compatible known-working accessories, one variable at a time.

iPhone won’t charge

Try a known working power source, firm connections and undamaged compatible accessories. If a temperature, liquid or accessory alert appears, follow that message.

Try this first

1 quick checks · ~2 min

  1. Read the alert and check risk signalsAn alert may mean you should stop charging.

Find your situation

See all the clues. Choose the one that matches what you observe.

Diagnostic signals

ObservationAnother cable restores charging
This points to the original cable or its connection, not a repaired iPhone. If it recurs when moved, stop bending it to maintain contact.

Step-by-step solutions

01

Read the alert and check risk signals

An alert may mean you should stop charging.

  1. Before connecting, inspect the cable, adapter and port externally. For damage, smell, swelling or extreme heat, stop charging and request service. Do not use damaged accessories or insert metal objects into the port.

  2. For a liquid alert, disconnect the cable and follow the related liquid-detection guide: stop wired charging tests and do not use rice. For Charging On Hold, follow the temperature guide; for Accessory Not Supported, follow that guide. Without an alert or risk, compare accessories.

02

Change one part of the power path at a time

  1. With undamaged accessories, connect directly to a compatible wall adapter without a hub. Check secure connections without forcing them. Try another outlet while keeping the cable and adapter: if charging appears, review the original outlet; do not repair it yourself if loose or damaged.

  2. At the checked outlet, keep the adapter and try another compatible working cable. If charging returns, retire the original cable; being new does not prove it works. If unchanged, keep that known-working cable and change only the adapter for another compatible one.

  3. If replacing the adapter changes the result, focus on that power source. If no known-working combination works, visually inspect the port without inserting tools; compacted debris, looseness or damage need service. Do not buy parts solely because the symbol did not appear immediately.

03

Interpret charging that does begin

  1. If the symbol appears but the percentage barely rises, observe with the screen locked and without games. If it improves, power use was contributing; this does not prove a failed battery.

  2. If it fails or is slow only on computer USB, compare wall power using the same compatible cable where possible. Working wall power focuses review on the computer port’s power/state, not a proven iPhone fault.

  3. A pause around 80% can reflect optimized charging, a configured limit on supported models or temperature. Read battery status; do not disable protections to test. For Charging On Hold, use its guide and allow a return to a suitable temperature.

Advanced

Advanced checks

Continue if the earlier steps did not help. Read each procedure’s precautions first.

04

Allow time for a depleted battery

  1. Without alerts or damage and with power checked, allow half an hour of charging. If it starts and the percentage rises, depletion or the previous power source becomes more relevant; observe without repeating tests.

  2. If still showing low battery or not starting, use the official forced restart for your model once, explained in the related iPhone won’t turn on guide. Then allow another half hour of charging. If unchanged, request service rather than another indefinite cycle.

Next step

Still not working?

If the port only connects when bending the cable, there is damage or it does not charge after the bounded attempt on checked power, stop and request service. Bring each substitution result and the exact message; do not open the iPhone or keep heating it to test.

Sources

Documentation behind this guide. Editorial recommendations are identified separately.

Source review: . A documentation review, not a physical hardware test.

Related problems