iPhone Not Charging: How to Fix It (Complete Guide 2026)

Quick answer: If your iPhone is not charging, clean the Lightning/USB-C port with a dry toothpick, replace the cable and adapter with genuine Apple accessories, and force restart the device. In 80% of cases, the problem is solved without a trip to a repair shop.

Why Won't My iPhone Charge? The 7 Most Common Causes

Before heading to an Apple Store or authorized repair shop, it's essential to understand the root cause of the issue. The vast majority of iPhones that "won't charge" have simple solutions that any user can apply at home in under 10 minutes.

Causes fall into three groups: physical (cable, adapter, port), software (iOS, settings), and internal hardware (battery, motherboard). Correctly identifying the group saves time and money.

1. Dust and Debris in the Charging Port

This is the #1 cause of iPhones that suddenly stop charging. Over time, lint from pockets and dust accumulate inside the Lightning or USB-C connector, blocking electrical contact. The iPhone may recognize the cable but won't pass any charge.

DomineTec Tip: Use a dry wooden toothpick (NEVER metal) to gently remove compacted lint from the bottom of the connector. Do this with the iPhone off and without using excessive force. Many iPhones "start working again" within 2 minutes using this technique.

2. Damaged Lightning or USB-C Cable

Cables bent at the connector base, pulled hard, or exposed to heat lose internal wire integrity. The damage is invisible on the outside but interrupts power transmission. Non-original cables (especially cheap $5 generics) have a much shorter lifespan than Apple MFi-certified cables.

3. Faulty Power Adapter

The power adapter (the white cube that plugs into the wall) may have burned out internally, especially after a power surge or voltage spike. Always test with another adapter before concluding the iPhone is faulty.

4. iPhone Frozen by iOS Software Bug

Sometimes the iOS operating system freezes in a state that prevents power management. In this case, the iPhone appears "dead" even with remaining battery or completely ignores the cable. The fix is a Force Restart.

5. Deeply Discharged Battery

If the iPhone ran completely flat for hours or days, the battery enters protection mode. Connect the iPhone to a charger and wait 15–30 minutes before trying to turn it on. Nothing will appear on the screen during this interval — that's normal.

6. Physically Damaged Charging Port

Drops, liquid exposure, or mechanical stress on the connector can bend the internal pins of the charging port. In this case, the cable fits "loosely" or doesn't click in properly. The solution is a port replacement at a repair shop.

7. Motherboard or Battery Failure

In rarer cases, the charging IC chip (responsible for power management on the logic board) may have failed. This requires specialist diagnosis with microsoldering equipment and has no DIY solution.

How to Fix It: Complete Step-by-Step Guide

Follow this diagnostic sequence in order — from simplest to most complex — before visiting a repair shop:

1. Clean the charging port: use a dry wooden toothpick to remove compacted debris
2. Replace the cable: use a genuine Apple or MFi-certified cable
3. Replace the adapter: test with another iPhone or iPad's power brick
4. Try a different outlet: avoid overloaded power strips or extension cords
5. Force Restart: force hardware reboot (instructions below)
6. Wait on charger: 30 minutes without trying to turn on (deep discharge)
7. Try wireless charging (MagSafe/Qi): if it charges wirelessly, the issue is the physical port
8. Visit a repair shop: if none of the above steps worked

How to Force Restart iPhone (By Model)

Force Restart forces the iPhone to reboot without erasing data. It's different from "turning off and on" — it resets the hardware even when iOS is completely frozen:

iPhone 8, SE (2nd and 3rd gen), iPhone X through iPhone 16

1. Quickly press and release Volume Up
2. Quickly press and release Volume Down
3. Press and hold the side button until the Apple logo appears
4. Release the button and wait for the iPhone to restart

iPhone 7 and 7 Plus

1. Simultaneously press and hold Volume Down + Sleep/Wake button
2. Keep holding until the Apple logo appears (about 10 seconds)

iPhone 6s and SE (1st gen)

1. Simultaneously press and hold Home + Sleep/Wake button
2. Keep holding until the Apple logo appears

DomineTec Tip: After the Force Restart, don't try to turn the iPhone on immediately. Connect it to the charger for at least 10 minutes first. For deeply discharged batteries, this makes all the difference.

iPhone Not Charging: Error Messages Explained

If your iPhone displays messages when you connect the charger, each one points to a specific issue:

• "This accessory may not be supported": Non-MFi cable or debris in the charging port
• "Charging not supported": Incompatible or damaged cable
• "Charging slowly": Adapter with insufficient wattage (use at least 20W for modern iPhones)
• Battery icon with lightning bolt but no progress: Charging IC failure or damaged port
• Completely black screen with no reaction: Dead battery (wait) or hardware damage

How Much Does It Cost to Fix an iPhone That Won't Charge?

If DIY solutions didn't work, here are average prices from US repair shops in 2026:

iPhone Not Charging After Water Exposure

If your iPhone got wet and stopped charging, iOS automatically shows the alert "Liquid Detected in Lightning/USB-C Connector" and blocks charging to prevent short circuits. This is a safety mechanism.

What to do:

1. Don't force the cable — tap "Dismiss" in the alert
2. Gently tap the iPhone to expel water from the connector
3. Place the iPhone vertically with the connector facing down for at least 1 hour
4. Wait 24 hours in a dry environment before attempting to charge again
5. Use wireless charging (MagSafe) while waiting for full drying

iPhone 15 and 16: USB-C Specific Tips

iPhone 15, 15 Pro, 16, and 16 Pro switched from Lightning to USB-C. There are important specifics:

• Avoid generic USB-C cables: USB-C is universal, but low-quality cables may not handle the required current
• For fast charging (27W): use a USB-C PD (Power Delivery) adapter with at least 30W
• For USB 3.0 data transfer (Pro only): use Apple's USB-C to USB-C cable with Thunderbolt/USB 3 speed
• MFi-certified USB-C cables guarantee full Apple compatibility

Also check our guide on iPhone stuck on black screen — another common issue that often appears alongside charging failures.

If you're considering upgrading your device, see our full iPhone repair cost guide before investing in an expensive repair.

iPhone Not Charging on Computer: Specific Diagnosis

If the iPhone is not recognized or won't charge when connected to a computer via cable, the causes differ from wall charging:

• Data-only cable issues: Some Lightning/USB-C cables only carry power without data support. Use an original Apple or MFi cable with data transfer capability.
• USB port with insufficient power: USB 2.0 ports provide only 500mA, not enough for modern iPhones. Use a USB 3.0 port (blue) or the computer's USB-C port.
• Missing driver on Windows: Install iTunes for Windows to ensure the Apple Mobile Device USB Driver is correctly installed.
• "Trust This Computer" prompt: If the iPhone shows this message, tap Trust. Without it, the data connection and charging are blocked.

How to Preserve iPhone Battery Life

After resolving the charging issue, adopt these practices to extend your iPhone battery lifespan:

1. Keep battery between 20% and 80%: Full charge cycles degrade battery faster. iOS's Optimized Battery Charging is designed for this.
2. Avoid overnight charging without protection: Prolonged heat from extended charging damages battery cells.
3. Use certified adapters only: Generic low-cost chargers often deliver unstable voltage, damaging the charging IC over time.
4. Don't charge inside a thick case in hot environments: Heat gets trapped by the case, accelerating battery degradation.
5. Check battery health regularly: Settings → Battery → Battery Health and Charging. Below 80%, consider a replacement.

DomineTec Tip: Apple guarantees that iPhone batteries retain at least 80% of original capacity after 500 full charge cycles. If your battery degraded before that, it may be a manufacturing defect. Check your warranty coverage at checkcoverage.apple.com.

MagSafe vs Cable: Which Charges Faster?

With MagSafe standard on iPhone 12 and later, many users wonder which charging method is more efficient:

For the fastest possible charging, a USB-C cable with a 20W+ adapter is the best option, even compared to MagSafe. MagSafe excels in convenience but doesn't beat wired charging for raw speed.

iPhone Under Apple Warranty: How to Request Free Repair

If your iPhone has charging issues within the warranty period, you're entitled to a free repair:

• Apple Limited Warranty: 1 year for manufacturing hardware defects.
• AppleCare+: 2 years of extended coverage, including accidental damage with a deductible.

To check your device coverage, visit checkcoverage.apple.com and enter your iPhone's serial number.

FAQ — Frequently Asked Questions About iPhone Not Charging