iPhone Not Charging? Here's the 5-Minute Fix

Updated April 2026 · 5 min read

You plug in your iPhone and… nothing. No charging symbol, no percentage climbing. Before you book a Genius Bar appointment ($99 minimum for out-of-warranty service), try the five checks below. Combined, they solve about 85% of iPhone charging issues — and four of the five are completely free.

Check #1: Lint in the port (40% of cases)

Your pocket is full of lint. Every time you sit down, a little bit gets compacted into the Lightning or USB-C port. After months of this, there's enough packed in there to physically block the cable's contacts from touching the phone's contacts.

1. Power off the iPhone (important — prevents accidental shorts).
2. Shine a flashlight directly into the port. You'll usually see a dense gray or white plug of lint.
3. Use a plastic toothpick or the plastic tip of a SIM ejector tool. Scrape gently from the far corner toward you. The lint will come out as a surprisingly large wad.
4. Never use metal tools. Paperclips can short out the charging pins and permanently damage the port.
5. Blow out any remaining dust with a can of compressed air held upright.

Check #2: Bad cable (25% of cases)

Cables fail silently. The copper wires inside crack from bending, especially near the connectors. A cable can still look fine and not carry power.

• Try a different cable — ideally Apple-certified (MFi).
• If you don't have another cable, try the phone in a different USB port or wall outlet.
• Cheap no-name cables often fail within 3–6 months. The Anker, Belkin, and Amazon Basics MFi cables last years.

Check #3: Bad adapter or wall outlet (10% of cases)

The wall adapter itself can die. Try plugging into a different adapter, or plug into a laptop USB port as a test. If the laptop charges the phone but the wall adapter doesn't, adapter is dead — replace it ($15–$25).

Check #4: Software glitch (10% of cases)

iOS occasionally gets stuck in a state where it refuses to acknowledge the charger. A force restart fixes it:

• iPhone 8 and later: Press and release volume up, press and release volume down, press and hold the side button until the Apple logo appears.
• iPhone 7: Hold side button + volume down together until Apple logo appears.
• iPhone 6s and earlier: Hold home + side button together.

Check #5: Battery health (remaining cases)

Go to Settings → Battery → Battery Health & Charging. You'll see:

• Maximum Capacity: Below 80% means your battery is significantly degraded. Above that, battery is probably not the culprit.
• Peak Performance Capability: Any message here except "Your battery is currently supporting normal peak performance" means Apple has already detected battery issues.

If battery health is low, Apple will replace it for $89 (iPhone 13 and earlier) or $99–$119 (iPhone 14+). Third-party repair shops charge $50–$80 but void your warranty.

Quick tips to prevent this recurring

• Clean the port every 3–4 months. 30 seconds with a toothpick.
• Charge wirelessly when possible. No port wear.
• Avoid keeping the phone on the charger overnight for months on end. Modern iPhones handle it fine with Optimized Charging, but heat stress adds up.
• Buy one quality cable and keep it for years. Cheap $3 cables cost more over time.

Frequently asked questions