How to fix “Accessory not supported” on iPhone

Complete guide with multiple methods and troubleshooting

7-10 min read
Expert Verified
Last Updated: August 2025

Quick Answer

To fix the 'Accessory not supported' error on your iPhone, start by checking your accessory for damage, ensuring it is certified by Apple, and cleaning the Lightning port. If the issue persists, try restarting your iPhone or resetting your settings.

Easy⏱ 7-10 min read

Prerequisites & Requirements

Before attempting to fix the 'Accessory not supported' error, ensure you have the following:
  • •An iPhone running iOS 12 or later.
  • •A certified Lightning accessory (charger, headphones, etc.).
  • •Access to a clean, dry cloth for cleaning the Lightning port.
  • •Backup of important data in case a factory reset is needed.

Method 1: Check and Clean the Lightning Port

This method is useful when the error is caused by dirt or debris in the Lightning port.
  • •Step 1: Inspect the Lightning port on your iPhone for any visible dirt or debris.
  • •Step 2: Use a clean, dry toothbrush or a soft-bristled brush to gently clean the port.
  • •Step 3: After cleaning, try reconnecting the accessory to see if the error persists.
  • •Step 4: If the error continues, proceed to restart your iPhone.

For iOS 15 and later

iOS 15 introduced improved accessory compatibility checks.
  • •Ensure your iPhone is updated to the latest version by going to Settings > General > Software Update.
  • •If using a third-party accessory, check for any firmware updates from the manufacturer.

For iOS 14 and earlier

Older versions may not have as robust compatibility checks.
  • •Check if the accessory is certified by Apple.
  • •If the accessory was previously working, consider if any recent updates may have affected compatibility.

Method 2: Restart Your iPhone

Restarting your iPhone can resolve temporary software glitches that may cause the error.
  • •Step 1: Press and hold the Side button and either Volume button until the slider appears.
  • •Step 2: Drag the slider to turn off your iPhone.
  • •Step 3: After the device is off, press and hold the Side button again until you see the Apple logo.
  • •Step 4: Once restarted, reconnect the accessory to check if the issue is resolved.

Troubleshooting Common Issues

If the methods above do not resolve the error, consider the following troubleshooting steps:
  • •Error: 'This accessory is not supported' - Solution: Ensure the accessory is MFi certified and try a different cable.
  • •Issue: Accessory works on another device - Fix: Reset your iPhone's settings by going to Settings > General > Reset > Reset All Settings.
  • •Problem: Persistent error after cleaning - Workaround: Try using a different Lightning accessory to see if the issue is with the iPhone or the accessory.

Advanced Tips & Shortcuts

For users looking to optimize their iPhone experience, consider these advanced tips:
  • •Keyboard shortcut: Double-click the Home button (or swipe up from the bottom on iPhone X and later) - Quickly access recently used apps.
  • •Command line: Connect to a Mac and use Terminal commands to check device logs for accessory errors.
  • •Hidden feature: Enable USB Accessories in Settings > Face ID & Passcode to allow accessories to connect when the device is locked.

Common Mistakes to Avoid

Avoid these common pitfalls:

Expert Tips

To prevent the 'Accessory not supported' error, always use certified accessories and keep your iPhone updated.