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After a botched attempt at jailbreaking, then removing the jailbreak, half the stuff does not work on the iPhone (apps won't sync, iPod app crashes, Settings don't "take", sync freezes the phone for 5 minutes after iTunes says its done, etc...).

I'd like to start over. I will re-download the apps manually and sync all my photos, addresses, etc... after the fact.

So how do I start over? I guess, if this was a PC, I'd be asking how to reformat the hard drive.

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up vote 8 down vote accepted

Does iTunes recognize your iPhone? If so, you can start (non-jailbroken), by just going to the Summary page when its plugged in and selecting restore.

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That's what I did. My mistake previously had been to do this and then restore from a backup. This time I simply started out as a new iPhone and then did a sync. Worked great. Thanks. – AngryHacker Dec 28 '10 at 19:41

You could put your phone into recovery mode by turning it off, then plugging it in to your computer while holding down the home button. All the data on your phone will be completely erased.

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