Hi, I just got the Samsung-F330 in Hong Kong last week (or technically F338). It worked fine at first, but now when it's in silent mode, the phone doesn't vibrate at all (it shows that I have a call coming in, but it won't notify me about it). It vibrates only when I actually physically shake the phone a couple times, then it'll vibrate once, then stop again. If I shake it again, it'll vibrate once again, then stop. Can somebody help me? Thanks in advance!











