I made a really big decision today - to erase all content and settings So, i pressed the button, my screen turned into a rotating sign i waited 4 hours ,missed hundreds of calls from my family my friend, etc. i went to my friend's place for dinner, when i came back home, another 5 hours has gone by i looked at my phone, that sign was still spinning, so i forced it to reboot by pressing power and home together. what i saw after 9 hours waiting was nothing changed, not even a photo was deleted WTF? APPLE? what the ***** does this option actually do?