Apple Error Codes and Fixes for iPhone, Mac and More

TechAlcazar explains Apple error codes in plain English. Find the exact message your iPhone, Mac, iPad, Apple Watch or AirPods shows, see what causes it, and follow the fix step by step.

Browse Device Errors Browse Service Errors
Common Apple error messages
  • 4013iPhoneThe iPhone could not be restored
  • -36MacThe Finder cannot complete the operation
  • FULLiCloudiCloud storage is full
  • WAITiMessageWaiting for activation
  • CONNApp StoreCannot connect to App Store
  • CARDApple PayCould not add card

Each error gets its own fix page

5Apple Device Hubs
5Apple Service Hubs
0Sign-Ups Needed to Read

Error Codes by Apple Device

Pick the hardware that shows the error. Each hub collects the errors seen on that hardware.

iPhone ErrorsRestore, update, activation and SIM Mac ErrorsFinder, startup, macOS install and disk iPad ErrorsDisabled screen, charging and iPadOS update Apple Watch ErrorsPairing, syncing and watchOS update AirPods ErrorsConnection, audio and case light

Account and Service Errors

Some problems come from an account or an online service rather than the hardware itself.

iCloud ErrorsStorage, backup, sync and sign-in App Store ErrorsDownload, purchase and connection Apple Pay ErrorsCard setup, Wallet and payment decline Apple Music ErrorsPlayback, library and subscription iMessage ErrorsActivation, delivery and FaceTime link

Why Readers Use TechAlcazar

Exact Message First

A guide opens with the error as it appears on screen, so a reader can confirm the match before reading on.

Quick Checks Before Resets

Steps run from the simplest check to the deepest reset, so nobody erases a phone to solve a small problem.

Device and Service in One Place

An iCloud alert on a phone links across both hubs, so the cause is easy to trace.

Independent Coverage

TechAlcazar is an independent publication and has no affiliation with Apple Inc.

How to Use a TechAlcazar Guide

  1. Match the Message

    Compare the words or number on your screen with the heading of the guide.

  2. Run the Quick Checks

    Confirm power, network, storage and software version before anything else.

  3. Follow the Main Steps

    Work through the numbered steps in order and test after each one.

  4. Get Official Help if Needed

    When the message stays after every step, the device may need an Apple repair.

Still Seeing the Same Error?

Send the exact wording to TechAlcazar, or book a repair check with Apple directly.

Send Your Error Message Open Apple Support