factory reset it or restore it
if you have all your media on your itunes and other files backed up in itunes (backs up on sync by default) then you shouldn't lose anything
To reset an iPhone model A1387 (iPhone 4S), go to "Settings," then tap "General." Scroll down and select "Reset," then choose "Erase All Content and Settings." Confirm your choice, and the device will begin the reset process. Make sure to back up any important data before proceeding, as this will erase everything on the phone.
No. Replacing the battery will not wipe the phone. Make sure the phone is off before you disconnect the battery though!
you go to your history and erase everything
There are many retailers that sell affordable dry erase calenders. Target, Office Depot, and Office Max are some retailers that sell affordable dry erase calenders. You can also go on Amazon to find cheaper dry erase calenders.
restore it on itunes
the same way with all of the other iphones
To sell a laptop, you will need to erase everything on the hard drive before selling it. There are hard drive erasers available which are free of charge.
http://www.webtree.ca/windowsxp/repair_xp.htm
You cannot remove everything off your profile.
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.
Well, you have a 2-year service contract with At&t so you better check out that you can change your billing address and emails and name and everything first..