How to Fix an iPhone Charger That Isn’t Working
To fix an iPhone that will not charge, test a working outlet, cable, and power adapter one at a time, then inspect and gently clean the charging port. Replace any damaged charger, and seek Apple or qualified repair help if a known-good setup still fails or the phone shows heat, swelling, physical damage, or a liquid warning.
Is the charger broken, or is the iPhone the problem?
This guide applies to iPhone models with a Lightning or USB-C charging connector. The draft does not specify particular iOS versions; the checks apply regardless of the iOS version. You do not need Administrator or sudo privileges, a backup, or a reset for these tests.
Before you start, keep the phone and connectors dry, disconnect visibly damaged accessories, and do not force a plug into the port. If the phone is swollen, smoking, unusually hot, or smells burnt, stop using it and skip further testing.
Start by looking at what the iPhone does when you connect it. The symptom can point to the likely cause:
No charging symbol appears when the cable is connectedThis symptom can appear with a dead outlet, faulty cable or adapter, debris in the port, a damaged port, or an iPhone that needs a restart. A battery icon with a lightning symbol normally indicates that wired charging has started. If the battery percentage does not increase after several minutes, the connection may be intermittent or the phone may be receiving very little power.
Use a swap test. Change only one part at a time so you can identify the failed part:
- Plug the adapter into a different working outlet, preferably one that powers another device.
- Try a known-good cable that fits your iPhone. Use the correct connector for the phone, such as Lightning or USB-C.
- Try a known-good power adapter with enough output for your iPhone and cable.
- If available, connect the same cable and adapter to another compatible iPhone.
- Try your iPhone with a different complete charging setup.
If another cable works, replace the original cable. If several cables work with one adapter but not another, replace the adapter. If the setup works in another outlet, the original outlet or power strip is the problem. If a known-good setup charges another iPhone but not yours, inspect the port and phone more closely.
No special privileges are needed for these checks. They do not require a backup or reset. If an outlet also fails with another device, stop using it and have the electrical issue checked.
Check these safety issues before plugging it in again
Stop using the charger immediately if you see exposed wire, split insulation, scorch marks, melted plastic, corrosion, a bent connector, or sparks. Unusual heat is also a warning sign, especially if the cable or adapter becomes too hot to hold comfortably, smells burnt, or heats up while the phone is idle. Unplug it by holding the plug or adapter, not by pulling the cable.
Do not tape over a damaged cable, bend a connector back into shape, open a power adapter, or attempt to repair its internal wiring. Replace damaged cables and adapters. A power adapter connects to mains electricity, so home repair can create a shock or fire risk even when the outside looks harmless.
If the iPhone displays a liquid warning, disconnect the cable and leave both the phone and cable in a dry, well-ventilated place. Do not charge through the connector until the warning clears. Do not use a hair dryer, compressed air, cotton swab, rice, or liquid cleaner in the port. Wireless charging may be an option if the back of the phone is dry and your model supports it, but do not use it if the phone itself is wet.
If the phone is swollen, the screen or back is lifting, it becomes very hot, or you notice smoke, stop using it and move away from the charger. Do not press on the phone or try to open it. Contact Apple or a qualified repair provider.
How to fix the common causes of an iPhone charger not working
Begin with the least invasive checks, in this order. Keep the iPhone unlocked or awake while testing so you can see its charging status. No Administrator or sudo privileges are needed.
Clean lint or debris from the charging port
Turn off the iPhone, disconnect every cable, and shine a light into the port. If you can see loose, dry debris, gently tease it out with a small, non-metallic, blunt tool designed for delicate electronics. Work from the edges and avoid scraping the contacts at the back. Never use a paper clip, pin, needle, knife, metal tweezers, water, alcohol, or other liquid.
Do not force a tool into the port or pack debris farther inside. If the material is compacted, the contacts look bent, or you cannot remove it without pressure, stop and have the port cleaned by Apple or a qualified repair shop.
Reconnect a known-good cable after cleaning. The connector should seat straight and fully. If it still will not seat or the charging symbol does not appear, the port may be damaged or more debris may be present; do not keep scraping it.
Check the connection and outlet
Remove any thick case that prevents the plug from seating. Push the connector in straight and fully, but never force it. Test a wall outlet directly instead of using a questionable extension lead or power strip. If another device also fails in that outlet, reset the outlet’s safety switch if appropriate or have the electrical issue checked.
A working outlet and a firmly seated known-good cable should produce the charging symbol. If they do not, continue with the adapter and phone checks rather than repeatedly reconnecting a damaged accessory.
Restart the iPhone
Disconnect the cable and restart the iPhone using its normal restart method, then connect the known-good charger again. If the iPhone is frozen, use the force-restart procedure for its model as described by Apple. A restart does not erase your data and does not require a backup, although keeping regular backups is wise.
If charging appears after the restart, the problem was likely a temporary software glitch. If there is still no charging symbol with a known-good setup, continue testing and arrange service if the other checks fail.
Let an overheated iPhone cool
Charging may pause when the phone is too hot. Move it out of direct sunlight, remove a thick case, disconnect it, and let it return to a normal room temperature before trying again. Do not put it in a refrigerator or freezer.
Try the known-good charger again once the phone is cool. If it repeatedly overheats during ordinary charging, stop using that setup and arrange service.
Check the accessory
Use a cable and adapter made for your iPhone and from a reputable manufacturer. For Lightning accessories, an uncertified or damaged accessory may trigger an accessory warning or fail to charge reliably. A cable that only works when held at an angle usually has internal or connector damage and should be replaced rather than repaired.
For Lightning cables, Apple certification such as the MFi program is a useful check. For USB-C charging, use a cable and adapter suitable for the phone and its charging requirements.
How to tell whether the fix worked
Reconnect the original setup after cleaning, swapping parts, or restarting the phone. Confirm that the connector sits firmly and that the charging symbol appears. Leave the iPhone connected for several minutes and check that the battery percentage begins to rise rather than repeatedly connecting and disconnecting.
If the phone was completely drained, it may need time before the screen turns on. Keep it connected to a known-good wall charger and wait before deciding that it has failed. A slow increase can be normal when using a low-output adapter, charging while the phone is busy, or charging in a warm environment.
Charging that stops at 80% is often a battery-protection feature rather than a broken charger. Optimized Battery Charging can delay charging beyond 80%, and temperature protection can also limit charging. If the phone stays at 80% only in certain conditions, let it cool and check its battery and charging settings:
Settings > BatteryIf the phone never goes beyond 80% even when cool and the feature is not responsible, test another charger and seek support.
Retest the setup by moving the phone gently without bending the cable. The battery should continue charging without flickering between charging and not charging. If the symbol appears but the percentage falls, the adapter may be too weak, the cable may be damaged, or the phone may be using more power than it receives. If the symbol never appears with multiple known-good setups, the port or iPhone itself needs attention.
When replacing the charger or getting repair help is the right answer
Replace the faulty part separately: the cable if swapping cables fixes the problem, the adapter if swapping adapters fixes it, or the phone’s port if multiple known-good setups fail only with that phone.
Replace a cable or adapter rather than repairing it if it is frayed, bent, scorched, sparking, unusually hot, corroded, or counterfeit. Do not continue testing a charger with any of those warning signs.
Choose accessories from Apple or a reputable manufacturer. For Lightning cables, look for Apple certification such as the MFi program. For USB-C charging, use a cable and adapter suitable for the phone and its charging requirements. A higher-wattage USB-C power adapter is generally compatible when it follows the relevant USB-C and Apple charging standards; the phone draws the power it can use. Avoid suspiciously cheap accessories with poor labeling or no clear manufacturer information.
Get Apple support or a qualified repair shop involved if the port is loose, bent, corroded, or physically damaged; the liquid warning remains; the phone will not charge with multiple known-good setups; charging cuts in and out when the phone moves; or the device becomes hot, swells, smells unusual, or shuts down. Also seek help if wireless charging works but wired charging does not, since that points toward the cable, port, or wired charging circuitry rather than the battery alone.
Before service, make a backup if the iPhone still works and can stay powered. Do not keep testing a setup that produces heat, sparks, or a burning smell.
Conclusion
Try a known-good outlet, cable, and adapter, then inspect the port and remove only loose, dry debris with a non-metallic tool. If charging still fails, or the phone shows damage, swelling, persistent heat, or a liquid warning, stop testing and contact Apple or a qualified repair shop.
Frequently Asked Questions
Why does my iPhone show that it is charging but the battery percentage does not increase?
The adapter may be too weak, the cable may be damaged, the phone may be too warm, or the iPhone may be using power faster than it receives it. Try a known-good wall adapter and cable, let the phone cool, and check whether the percentage rises after several minutes. If it still falls or stays level, test another complete setup and seek support if needed.
Can I clean an iPhone charging port with a toothpick?
A dry, blunt, non-metallic tool can sometimes remove loose lint, but use very light pressure, work from the edges, and avoid the contacts at the back. Do not use metal tools or liquid. Stop if debris is compacted or the port looks damaged, and have it cleaned by Apple or a qualified repair shop.
Why does my iPhone stop charging at 80 percent?
Optimized Battery Charging or temperature protection may be limiting the charge. Let the phone cool and check `Settings > Battery`. If it remains capped at 80% without an obvious software or temperature reason, test another charger and contact Apple support.