I recently got the My Samsung Galaxy S from 3 in Hong Kong. While for the most part the phone is preforming very well and definitely recommended. The problem is that a random points the phone will freeze momentarily. During which the face buttons do not work, nor does the touch sensitive screen. The only thing responding is the lock/unlock button. These unresponsive moments are exactly that, short inconveniences that have no true overall effect. It is just highly annoying since it happens with some frequency. Some time when charging on power it auto shuts off even happened after a while connecting to USB for charging. Also have removed the battery to fully shut it down, and turn it on. Also the phone randomly instantly shuts off, and resumes normal start up. Help will be greatly appreciated.