The charger is usually fine — the problem is almost always dirt, a loose connection, or a battery that needs resetting

When your phone won't charge, the charger itself is rarely broken. Most of the time, the issue is a dirty charging port on your phone, a bent connector inside the port, a frayed cable, or a phone battery that has gotten stuck in a low-power state. The fastest way to find out which one is happening is to test the charger on another device — if that device charges normally, your phone is the problem. If the other device also won't charge, the charger or cable is at fault.

Before you buy a replacement, try the fixes in this guide. Most take less than five minutes and cost nothing. If none of them work, you will know whether you need a new charger, a new cable, or help from the phone manufacturer.

Key Takeaways

  • Test your charger on another phone or device first — if it works there, your phone's charging port or battery is the problem, not the charger.
  • Lint and dust in the charging port are the most common reason a phone won't charge; clean it with a dry toothpick or soft brush, never liquid.
  • A bent metal contact inside the port can prevent connection; look inside with a flashlight and gently straighten it if you see it bent toward the side.
  • If the phone gets warm while plugged in but does not charge, the battery may be stuck; try a hard reset by holding the power and volume buttons together for 10 to 15 seconds.
  • Frayed cables and chargers with cracked plastic around the connector are safety hazards and should be replaced, not repaired.

Clean the charging port on your phone

Lint, dust, and pocket debris collect inside the charging port and prevent the connector from making full contact. This is the most common reason a phone stops charging. Look into the port with a flashlight — if you see white, gray, or black fuzz, cleaning will likely fix the problem.

Use a dry toothpick, wooden skewer, or soft brass brush to gently scrape the inside walls of the port. Work slowly and do not poke straight down — angle the tool so it brushes the sides and bottom where lint collects. Turn the phone and work from different angles. Stop if you feel resistance; you should not have to force anything. Never use liquid, compressed air, or metal tools — liquid can damage the battery, compressed air can push debris deeper, and metal can short the port.

After cleaning, wait a few minutes and plug in the charger. If the phone charges, you are done. If it still does not charge, move to the next step.

Check for a bent contact inside the port

Inside the charging port is a small metal contact — usually a flat piece or a row of pins depending on your phone type. If this contact bends toward the side of the port, it will not touch the charger connector and the phone will not charge.

Shine a flashlight into the port and look at the metal piece inside. If it is centered and straight, skip this step. If it is bent or leaning to one side, you can try to straighten it. Use a toothpick or the tip of a wooden skewer — never metal — and gently push the contact back to center. Work slowly and do not explore force. If the contact does not move easily, stop; forcing it can break it permanently.

Plug in the charger and test. If the phone still does not charge and the contact looks damaged or broken, the port itself may need replacement, which usually requires sending the phone to the manufacturer or a repair shop.

Inspect the cable and charger for damage

Look at the entire length of the charging cable, especially near both ends where the cable bends most. If you see cracks in the rubber coating, exposed wires, or a connector that is bent or loose, the cable is damaged and should be replaced. Do not try to repair it with tape — a damaged cable is a fire and shock hazard.

Check the charger block itself. If the plastic is cracked, melted, or discolored, or if the connector is bent or loose, replace the charger. Again, do not attempt to repair it. If the cable looks fine but the connector feels loose when you plug it in, try a different cable of the same type — the port on your phone may be worn, but a snug cable will still work.

If you need a replacement cable or charger, buy one made by your phone's manufacturer or one that is certified for your phone model. Third-party chargers vary widely in quality and safety.

Try a hard reset if the phone gets warm but won't charge

Sometimes a phone's battery gets stuck in a low-power state and will not accept a charge, even though the charger and port are working. You may notice the phone feels warm when plugged in, or the charging icon appears briefly and then disappears. A hard reset can unstick the battery.

The steps for a hard reset differ by phone type. On most iPhones, hold the power button and the volume-down button at the same time for 10 to 15 seconds until you see the power-off slider, then release. On most Android phones, hold the power button and volume-up button together for 10 to 15 seconds until the phone vibrates or the screen goes black. The phone will restart. Plug in the charger and see if it charges normally.

If the phone still will not charge after a hard reset, the battery itself may be failing. This requires replacement by the manufacturer or a certified repair shop.

Test the charger on another device

If you have access to another phone or tablet that uses the same charger type, plug your charger into it. If the other device charges normally, your charger is working and the problem is with your phone's port or battery. If the other device also will not charge, the charger or cable is faulty and needs to be replaced.

If you do not have another device to test, you can also try a different charger on your phone. Borrow one from a friend or family member if possible. If your phone charges with a different charger, your original charger is the problem. If your phone still will not charge with a different charger, the problem is your phone's port or battery.

When to replace the charger versus the phone

After testing, you should know which part is broken. If the charger or cable is faulty, buy a replacement from your phone's manufacturer or a certified seller. If the port or battery is the problem, contact the phone manufacturer's support line or visit an authorized repair center. Many phones are still under warranty for the first year, and some issues like battery failure are covered even after that.

If your phone is very old or the repair cost is high, you may decide it is time to replace the phone instead. But before you do, try all the steps in this guide — most charging problems are fixable for less than the cost of a new charger.

Frequently Asked Questions

Can I use a charger from a different brand if it has the same connector?

Same connector does not always mean safe or compatible. Different brands use different power levels, and using the wrong one can damage the battery or charger. Use a charger made by your phone's manufacturer or one certified for your specific phone model. The certification is usually printed on the charger or in the product listing.

Is it safe to use a phone while it is charging?

It is safe to use a phone while it charges, but the phone will charge more slowly and may get warm. If the phone gets very hot — too hot to hold comfortably — unplug it and let it cool. Extreme heat can damage the battery. Using the phone while charging is fine for calls, texts, and light browsing, but avoid heavy tasks like gaming or video recording.

Why does my phone charge slowly even though the charger works?

Slow charging usually means the charger is lower power than your phone normally uses, the port is partially dirty, or the phone is running hot. Try cleaning the port, closing unused apps, and using the charger that came with your phone. If the phone is still warm, let it cool before charging. Some phones also charge slowly when the battery is very low or very high as a safety measure.

What should I do if the charger gets hot?

A charger should be warm but not hot to the touch. If it is too hot to hold, unplug it when ready and do not use it again. A charger that overheats is a fire hazard. Replace it with a new one from the manufacturer. Do not try to cool it down or repair it.

Can water damage prevent a phone from charging?

Yes. If your phone got wet, the charging port may have corrosion or moisture inside that blocks the connection. Let the phone dry completely in a warm, dry place for at least 24 hours before trying to charge it again. Do not use heat like a hair dryer. If the phone still will not charge after drying, the port may have permanent damage and will need professional repair.