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This guide is to help fix and troubleshoot messages received when updating and restoring your iPhone, iPad and iPod devices.
Simply select the iTunes error code you are receiving from the list below to see possible symptoms, cases and solutions.
Error Codes
2, 4, 6, 9, 13 and 14, 18, 19, 20, 21, 23, 28, 29, 34, 35, 37, 40, -48, 50, 1000, 1002, 1004, 1011, 1012, 1013,1014, 1015, 1479, 1600, 1601, 1602, 1603, 1604, 1611, 1631, 1638, 1639, 2001, 2002, 2005, 2006, 2009, 3002, 3004, 3013, 3014, 3015, 3194, 9006, 9807, -9808, 9844, 20000-20008, 4026xxxxx.
How To Back Up, Update and Restore Your iPhone, iPad and iPod
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