iPhone Not Charging? How to Fix It (Step by Step)

Plugging in your iPhone and seeing nothing happen is stressful — but it’s usually fixable in a couple of minutes without a trip to the Apple Store. The cause is almost always something simple: a bad cable, a dirty port, or a software hiccup. Here’s how to fix an iPhone that won’t charge, step by step, from the most common cause to the last resort.

Fix 1: Check the Cable, Adapter, and Outlet

The single most common reason an iPhone won’t charge is a faulty cable or adapter — they fail far more often than the phone. Before anything else, rule them out: try a different charging cable, plug into a different wall adapter you know works, and try a different outlet. Frayed, bent, or cheap third-party cables are frequent culprits. If a charging icon appears with a different cable or adapter, you’ve found the problem.

Fix 2: Clean the Charging Port

Pocket lint compacting inside the charging port is the number-one physical cause of a phone that won’t charge — and it’s easy to miss. Power off the iPhone, then gently remove debris from the port. Use a wooden or plastic toothpick (never metal, which can damage the contacts) to loosen packed lint, or a short burst of compressed air. You’ll often pull out a surprising plug of pocket fluff, and charging returns immediately.

Fix 3: Force Restart Your iPhone

A software glitch can stop charging even when the hardware is fine. A force restart clears it without erasing anything. On iPhones with Face ID (and recent models): press and quickly release Volume Up, press and quickly release Volume Down, then press and hold the Side button until the Apple logo appears. On older Home-button models, hold the Home and Side buttons together. Then plug in and test.

Fix 4: Check Temperature and Update iOS

iPhones deliberately stop charging when they’re too hot or too cold to protect the battery, which can look like a fault. If your phone is warm (from sun, a hot car, or heavy use), let it cool to room temperature and try again. Also make sure iOS is current: Settings > General > Software Update, since Apple occasionally fixes charging bugs in updates. If your phone is stuck and unresponsive, see our guide to a frozen or misbehaving iPhone.

Your Fix-It Checklist

• Try a different cable, adapter, and outlet
• Test wireless charging to isolate a cable/port issue
• Clean lint from the charging port (wooden toothpick, powered off)
• Force restart the iPhone
• Let it cool to room temperature if it’s hot
• Update to the latest iOS

When It’s the Battery or Port

If you’ve worked through everything above and the iPhone still won’t charge, the problem may be a worn battery or a damaged charging port. Check your battery health in Settings > Battery > Battery Health & Charging — if maximum capacity is very low, a battery replacement will help. A port that’s physically loose, corroded, or damaged needs professional repair. Both are far cheaper than a new phone, and Apple or a reputable repair shop can diagnose which it is.

Frequently Asked Questions

Why is my iPhone plugged in but not charging?

Usually a faulty cable or adapter, lint in the charging port, or a software glitch — and sometimes the phone being too hot. Try a different cable and adapter, clean the port with a wooden toothpick, and force restart. If it charges wirelessly but not by cable, the cable or port is the issue, not the battery.

How do I clean my iPhone charging port safely?

Power off the iPhone first, then gently loosen and remove lint with a wooden or plastic toothpick, or use a short burst of compressed air. Never use metal objects, which can damage the contacts, and don’t use liquids. Pocket lint is the most common physical cause, so this simple step fixes many ‘not charging’ cases.

Does iPhone not charging mean the battery is dead?

Rarely. Most of the time it’s a cable, adapter, dirty port, or software issue — all easy to fix. A truly dead battery usually shows as very short runtime and low ‘maximum capacity’ in Battery Health, not a sudden refusal to charge. Work through the simple fixes first before assuming the battery.

Why iPhones Stop Charging (and How to Prevent It)

Understanding the causes helps you avoid a repeat. The usual culprits are a worn or damaged cable (they flex and fail over time), lint building up in the port from your pocket, a software glitch, heat, or an aging battery. Most are preventable with a few habits: use quality certified cables and replace frayed ones promptly, keep the port clean, avoid leaving the phone in hot places like a car dashboard, and don’t routinely drain it to 0%.

Turning on Optimized Battery Charging (Settings > Battery > Charging) also helps — it learns your routine and avoids keeping the battery at a full, hot 100% longer than needed, which slows long-term wear. A little care keeps charging reliable and extends how long your battery lasts before it needs replacing.

Is it bad to use my iPhone while it charges?

No — using your iPhone while it charges is completely fine and won’t harm the battery; Apple designed it for that. It may run a little warmer, so avoid heavy gaming under a thick case while charging in a hot room. But normal use while plugged in is perfectly safe and won’t cause charging problems.

Fixing Slow Charging and Charging That Stops and Starts

Sometimes an iPhone charges, but slowly, or it charges in fits and starts — and that has its own set of causes. Slow charging is often down to a low-wattage adapter (a small 5W plug charges far slower than a 20W one), charging from a laptop USB port instead of the wall, or a cable that can only deliver a trickle of power. If you want fast charging, use a higher-wattage USB-C adapter and a cable rated for it, plugged straight into the wall rather than a hub or computer.

Charging that repeatedly connects and disconnects — you hear the chime again and again — almost always points to a loose or dirty connection: lint in the port, a worn cable tip, or a slightly bent connector. Clean the port carefully, try a different cable, and make sure the plug seats firmly. If the phone only charges when you hold the cable at a certain angle, the cable or the port is failing and should be replaced or repaired. Catching this early prevents it from becoming a phone that won’t charge at all.

How long should an iPhone take to fully charge?

With a suitable charger, most iPhones reach about 50% in around 30 minutes of fast charging and a full charge in roughly 1.5 to 2 hours, depending on the model and adapter. A slow, low-wattage plug can take much longer. If charging is dramatically slower than usual, suspect a weak adapter, a poor cable, or a dirty port before assuming a battery fault, and check Battery Health to rule out heavy wear.

Key Takeaways

• Most ‘not charging’ issues are the cable, adapter, or a dirty port — not the battery
• Swap the cable/adapter and clean the port first
• Force restart clears software glitches
• Heat pauses charging — let a hot phone cool down
• If all else fails, check Battery Health; a battery or port repair is cheaper than a new phone

The Bottom Line

An iPhone that won’t charge is almost always an easy fix: a fresh cable and adapter, a quick clean of the lint-packed port, a force restart, and a check that it isn’t overheating solve the vast majority of cases. Work through them in order before worrying about the battery. If nothing helps, check Battery Health and get the battery or port looked at — both are inexpensive repairs. For the same problem on a computer, see our guide to a laptop that won’t charge.