Apple iPhone or iPad error codes

Apple iPhone or iPad code 1, -1

Apple's article lists 1, with 3, 11, 12, 13 and 16, among the errors that might mean a hardware issue.

Apple files 1 in its hardware group, so update the computer's software or iTunes first. Apple says to retry after each check of the software, cable, computer and network; if the error remains it may be a hardware issue.

Apple iPhone or iPad code 14

Apple's article lists 14 among the error numbers it covers but gives it no separate cause or step.

Install updates on the computer, then try the update or restore again.

Update the computer's software or iTunes first. Apple gives error 14 no step of its own, so use its general checks: Apple's USB checks, trying again after each: use the USB cable that came with the device, or another Apple-certified cable; switch to a different USB port on the computer, but not the port on a keyboard, which often lacks the power to update or restore; and try a USB port on a different computer. Then Apple says to retry after each check of the software, cable, computer and network; if the error remains it may be a hardware issue.

Apple iPhone or iPad code 40

Apple's article lists 40 with the errors that might mean a hardware issue.

Apple files 40 in the same hardware group as 21 and 56, so update the computer's software or iTunes first. Apple says to retry after each check of the software, cable, computer and network; if the error remains it may be a hardware issue.

Apple iPhone or iPad code 56

Apple's article lists 56 with the errors that might mean a hardware issue.

Apple files 56 in the same hardware group as 21 and 40, so update the computer's software or iTunes first. Apple says to retry after each check of the software, cable, computer and network; if the error remains it may be a hardware issue.

Apple iPhone or iPad code 1671

Apple says error 1671 means the computer is still downloading the software the update needs.

Wait for the computer to finish downloading the software.

Apple's step: wait for your computer to finish downloading software, then try again. Do not disconnect the device while the download runs.

Apple iPhone or iPad code 4005

Apple lists 4005 with the errors to retry, and with the errors that point to the USB connection, cable, port or computer.

Try the update again.

Apple's step for 4005, 4013 and 4014 is to try the update again; if it repeats, check the USB connection. Apple's USB checks, trying again after each: use the USB cable that came with the device, or another Apple-certified cable; switch to a different USB port on the computer, but not the port on a keyboard, which often lacks the power to update or restore; and try a USB port on a different computer. Apple's steps to try first: install software updates on the Mac, or update iTunes or the Apple Devices app on a Windows PC, then follow the steps for your error number.

Apple iPhone or iPad code 4014

Apple lists 4014 with the errors to retry, and with the errors that point to the USB connection, cable, port or computer.

Try the update again.

Apple's step for 4005, 4013 and 4014 is to try the update again; if it repeats, check the USB connection. Apple's USB checks, trying again after each: use the USB cable that came with the device, or another Apple-certified cable; switch to a different USB port on the computer, but not the port on a keyboard, which often lacks the power to update or restore; and try a USB port on a different computer. Apple's steps to try first: install software updates on the Mac, or update iTunes or the Apple Devices app on a Windows PC, then follow the steps for your error number.