Hi all, I have an iPhone 4 that I have sold on eBay and will be sending to the new owner this week. I have tried to wipe the phone completely but no matter what I do it always, always retains my iTunes username (in the Store settings page) and my iCloud usernames (in various other Settings pages). I have tried doing the following: - 'Erase all content and settings' - Loading it with music and wiping it several times - Restoring the iOS 5 software from scratch in iTunes Each time I wipe it 'completely' I have to have my sim card in the phone to get past the 'set up as a new iPhone' stuff to then check the Settings app and see if it's forgotten my IDs. I'm wondering - without the SIM card it's impossible to get to the Home Screen during the setup/activation stage, so does that mean that either of the following is true? 1) The SIM card retains my usernames and pre-fills them in the Settings pages? 2) When the new owner puts his own micro-sim in, it will clear those fields? I believe that the new owner will likely have his own ID to enter, or will set one up when prompted by the software, but I don't understand why completely wiping the device many, many times isn't clearing my usernames so if anyone can confirm that it's the presence of my SIM card that's causing this problem, I will feel better about sending this device to a stranger. Cheers!