If your computer doesn't recognize your connected device, you might see an unknown error or a "0xE" error. Follow these steps and try to connect your device again after each step.
- Make sure that your iOS or iPadOS device is turned on, unlocked, and on the Home screen.
- Check that you have the latest software on your Mac or Windows PC. If you're using iTunes, make sure you have the latest version.
- If you see a Trust this Computer alert, unlock your device and tap Trust. If you can't unlock your device because you forgot your passcode, find out what to do.
- Unplug all USB accessories from your computer except for your device. Try each USB port to see if one works. Then try a different Apple USB cable.*
- Restart your computer.
- Restart your iPhone, iPad, or iPod touch.
- Follow these additional steps for your Mac or Windows PC.
- Try connecting your device to another computer. If you have the same issue on another computer, contact Apple Support.
Additional steps for Mac
- Connect your iOS or iPadOS device and make sure that it's unlocked and on the Home screen.
- On your Mac, choose Finder > Preferences from the Finder menu bar, then click Sidebar at the top of the preferences window. Make sure that "CDs, DVDs and iOS Devices" is checked.
- Press and hold the Option key, then choose System Information from the Apple menu . From the list on the left, select USB.
- If you see your iPhone, iPad, or iPod under USB Device Tree, get the latest macOS or install the latest updates. If you don't see your device or still need help, contact Apple Support.