Hi there, i am a new user of samsung. I buy samsung galaxy y dous last december 12 2012 , after buying i handle it with very care, after a week it has some problem, the return key and the setting key are malfunctioning, i go to the service center and they replace the touch panel, but after i arrive here in my hometown for christmas break it goes back to it's problem. I wonder this is happening. I want a very helpful response. Thanks ahead.