Wi-Fi sync often cause iTunes to force restore the iOS device

Number:rdar://10524642 Date Originated:4-Dec-2011
Status:Open Resolved:
Product:iTunes Product Version:iOS 5.0.1
Classification:Duplicate of 10218300 Reproducible:Often

Turning on Wi-Fi sync on an iOS device often causes sync issues such that on the next sync iTunes forces the user to restore the device. There is no way to sync the device without relegating iTunes to have its way.  This causes data loss up to the last backup.

Steps to Reproduce:

1. Turn on Wi-Fi sync on iTunes (Mac OS X 10.7.2 host, iOS 5.0.1 client)
2. Consistently use Wi-Fi sync every day for at least one month and never use USB sync.
3. There will be a good chance that iTunes forces you to restore the device up to the latest backup.

Expected Results:

Wi-Fi sync is 100% reliable and will not cause sync issues like this (refer to attached screenshot).

Actual Results:

About every three weeks or so of syncing exclusively via Wi-Fi, iTunes would force the user to restore the iOS device via backup.


This rarely happens with USB sync.


The test host machine is a Macbook Air (2011) with  Mac OS X 10.7.1 & 10.7.2.

Duplicate of Bug ID: 10218300


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