iOS14 Error 4000
I am trying to update my phone via iTunes to ios14 and I keep getting this unknown error (4000)
currently on 13.6.1 iphone 11 pro
iPhone 11 Pro
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I am trying to update my phone via iTunes to ios14 and I keep getting this unknown error (4000)
currently on 13.6.1 iphone 11 pro
iPhone 11 Pro
Error 4000 is an undocumented error code (at least publicly undocumented). It means that the connection between the phone and iTunes was interrupted in the middle of a sync or update activity. In the past this might have been caused by a flakey USB port, an antivirus or a firewall. However, there is a new cause of this error that is the result of a bug in iTunes for Windows that requires the phone not be locked during the update. So first check your antivirus and firewall (temporarily disable them), but if that doesn’t fix it there are three workarounds for the bug:
Note that this error should only be a problem for updates; if you are restoring iOS rather than updating it should not occur.
Awesome! It worked for me too!
It's working!. Thx
That worked for me too. I was really getting frustrated. Apple support couldn’t help either. Thanks!
Maybe they didn’t know. I spoke with several techs at Apple and they couldn’t resolve my issue.
Thank you. It worked like charm.
new iphone XR will not send or receive calls. cannot install update. Error message 4000 shown
how do you disable passcode
Settings / Touch ID & Passcode / Turn Passcode Off
it worked. Thanks. The problem seemed to coincide with IOS Update 14.2. Now OK.
No, it actually coincides with an iTunes for Windows update over a month ago.
Well, the Windows iTunes update 12.10.10.2 that just came in did not solve the issue.
So to me it seems an iOS 14 issue. Have had this error for all iOS 14 updates, including when updating OTA.
MarkW33,
Are you absolutely sure you got "error 4000" (not a different error message) updating your device OTA?
This would be a novelty (for me).
Regards
Giulio
It was not that error code, but the iPhone just didn't want to update by OTA nor iTunes with passcode on.
Okay, thank you.
Giulio
Glad you could have worked it out, Aram:)
Giulio
iOS14 Error 4000