iphonecannotbeupdatederror4000

2022年3月14日 — Note if you're getting a -4000 error when updating from iTunes you need to remove your device passcode, update, then enable again afterwards.

2021年3月7日 — Error 4000 is an undocumented error code (at least publicly undocumented). It means that the connection between the phone and iTunes was ...

2023年4月12日 — How to fix iPhone update error 4000 in iTunes · 1. Restart your computer and iPhone · 2. Update iTunes · 3. Update your computer operating system.

2021年11月18日 — An unknown error occurred (4000)” means that iTunes stops from updating your iPhone. It is also known as iTunes error 4000 or iPhone update ...

2022年12月29日 — Error code 4000 indicates that something unexpected happened and iTunes could not update your iPhone or iPad. Restarting your iOS device and ...

Error 4000 is not documented by Apple. It appears that a connection loss between your device and iTunes during a sync or update process causes this problem. It ...

2020年9月20日 — So, if you're one of those who have Error 4000 in iTunes when updating iOS you need to remove the passcode and keep device unlocked before the ...

2023年6月2日 — Method 5. Manually update iPhone iTunes. If you click Update in iTunes but get error 4000, you could try manually update iPhone in iTunes. 1.