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Fix: iPhone Could Not Be Updated Error 4000 – iTunes

iPhone Could Not Be Updated Error 4000 iTunes

If you are trying to update your iOS device (iPhone or iPad) using iTunes, you may receive an error message after the iOS update downloads and attempts to install to your device.

 

The iPhone “” could not be updated. An unknown error occurred (4000).

 

The error most likely indicates your iPhone is already updated with the version of iOS iTunes downloaded. Verify this on your iPhone and attempt the updated using your iPhone by going to Settings -> General -> Software Update.

 

It is also possible your iOS device locked with a passcode during the beginning of the installation in iTunes and this caused the update to fail.





If you still want to update your iOS using iTunes, ensure you are using the latest version of iTunes from Apple. Reboot your iOS device and attempt the update through iTunes again by plugging your iOS device into your computer.

 


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Comments

joohn on Wednesday, 12 September 2018 10:43

im still getting 4000 error even after i put in the passcode

im still getting 4000 error even after i put in the passcode
James Rivington on Monday, 23 July 2018 12:41

Thank you! Thank you! Thank you! Yes to all the comments above about the software "kiddies". Very polite compared to what I might say.

Thank you! Thank you! Thank you! Yes to all the comments above about the software "kiddies". Very polite compared to what I might say.
Ted Heubach on Tuesday, 05 June 2018 11:51

"It is also possible your iOS device locked with a passcode.." - That was the reason !

"It is also possible your iOS device locked with a passcode.." - That was the reason !
Chin Music on Wednesday, 03 October 2018 18:59

Thank you, thank you, the passcode lock, (Settings: Display and Brightness) was turned on to 5 minutes. When I changed it to "Never" my update went through.

Thank you, thank you, the passcode lock, (Settings: Display and Brightness) was turned on to 5 minutes. When I changed it to "Never" my update went through.
smallz on Thursday, 31 May 2018 08:39

Absolutely! I kept missing it when it asked me for the password because it takes so long to "verify the software". I tried it during daytime (when i'm awake, hah!) and was able to finally catch it to enter my passcode. Low and behold it worked and we are now updating!! Thank you all!

Absolutely! I kept missing it when it asked me for the password because it takes so long to "verify the software". I tried it during daytime (when i'm awake, hah!) and was able to finally catch it to enter my passcode. Low and behold it worked and we are now updating!! Thank you all!
weezely on Tuesday, 08 May 2018 12:03

[gripes start]

Since there are plenty of us complaining - here's my list of gripes.

* Yes - Idiotic that it throws an uknown error 4000 when it should know damn well a passcode stopped it.. (Agree 100% with above commenters).

* Why couldn't Apple have got the silly iPhone / silly iTunes to prompt for passcode right at the START - before I went off to have a shower or do something else.. No it needs its silly little hand held...

* Here's the kicker - Today getting off the train with 10% battery left, iOS decides to prompt me to update to the latest version.. Great idea!@! Let's see how that goes!! NOT.

For big companies MS, Apple and others do a great job of looking like they need to hire some kindergartners to give them some clues on decent software engineering...

[gripes end]

[gripes start] Since there are plenty of us complaining - here's my list of gripes. * Yes - Idiotic that it throws an uknown error 4000 when it should know damn well a passcode stopped it.. (Agree 100% with above commenters). * Why couldn't Apple have got the silly iPhone / silly iTunes to prompt for passcode right at the START - before I went off to have a shower or do something else.. No it needs its silly little hand held... * Here's the kicker - Today getting off the train with 10% battery left, iOS decides to prompt me to update to the latest version.. Great idea!@! Let's see how that goes!! NOT. For big companies MS, Apple and others do a great job of looking like they need to hire some kindergartners to give them some clues on decent software engineering... [gripes end]
MW on Monday, 16 April 2018 11:08

Rebooting my phone seemed to resolve my issue.

Rebooting my phone seemed to resolve my issue.
KayDee on Friday, 09 March 2018 23:44

bloody passcode. How is that an unknown error?

bloody passcode. How is that an unknown error?
Guest
Wednesday, 21 November 2018


Shout Box!

User - 26/10/2018 - 08:55

Have been habving this issue last hour. Unreal hinge is trash

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