Fix for error 4000 when updating an iOS device with iTunes on Windows

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morphine
Site Admin
Posts: 33
Joined: Tue Jul 07, 2020 6:47 pm

Fix for error 4000 when updating an iOS device with iTunes on Windows:

- Disable your device's passcode and enable it after the update.

It's apparently a known bug with the current version of iTunes on Windows. Reportedly, the USB connection "gets interrupted" by the passcode request (yes, I know, it makes as much sense to you as it does to me).
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cyclone442
Posts: 5
Joined: Tue Jun 08, 2021 11:56 am

morphine wrote: ↑Thu Aug 12, 2021 11:33 am - Disable your device's passcode and enable it after the update.

It's apparently a known bug with the current version of iTunes on Windows. Reportedly, the USB connection "gets interrupted" by the passcode request (yes, I know, it makes as much sense to you as it does to me).
I'm guessing it's probably a safety valve to prevent USB hardware attacks to the device.
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morphine
Site Admin
Posts: 33
Joined: Tue Jul 07, 2020 6:47 pm

That might well be, but I've never had this kind of issue in the past. According to reports, started happening in contemporary versions of iTunes.
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