Reminder for those returning to China soon: the technology in China is so advanced, it's quite scary. I'm planning to return to China and saw this video. It seems I'll need to change my phone when I go back. For those who don't want to change their phones, you can also air-ship them back, but don't trouble yourself just to save a little money. PS: Apple phones can be restored; the technology in China in this regard is really strong.