Yes. Only do this when your phone is frozen or bricked. If you kept a backup saved on your computer or up in the cloud, you can always back it up after the restore.
All you have todo is attach the iPhone to your computer insure iTunes is open and then select restore to factory settings options, which will reset the handset and erase ALL previous data.
No, you do not need an iTunes account to reset an iPhone. You can reset an iPhone directly through its settings by going to "Settings" > "General" > "Transfer or Reset iPhone" > "Erase All Content and Settings." However, if you want to reset your iPhone using iTunes or Finder, you will need an Apple ID to back up or restore data.
Go to settings, set a passcoade and put ' after ten incorrect try erase all memory. Do it ten times then it will erase everything- wall a!
Simple, plug into iTunes, restore to factory settings.
the same way with all of the other iphones
When you restore an iPod it will wipe all data saved on it. Yeah
If you have iiOS 5, then you can go into your settings and erase all content and settings from there you can restore to an iCloud backup
No it does not. well at least that is what happend to me
U have 2 restore it and erase all of its data
It shouldn't because all your doing is turning it on and off
that leave your ipod like when it was new, reset to factory condition
If you mean backup and restore your iphone data via iTunes. Then yes. Restore data from iTunes backup will wipe your current phone data. If you want to backup your phone data, and merge old bakcup with current phone data when restoring, you can try a tool called Syncios Data Transfer. Syncios supports to transfer data between iPhone and android phone, a selective backup and restore is also available. And all your current phone data will be kept.