I purchased the Samsung Mobile Corby C3510 - on 20th March 2010 but within 12 months, touch screen stopped working and had to get the touch screen changed twice, now it is again not working while touching the screen. Will have to rush to the service centre before 20th March 2011 - In every 3 or 4 months, touch screen does not work at all while toucing any button. If this is the case, after warranty period of 12 months, will have to throw the mobile handset iself - Will SAMSUNG refund the amount if the mobile is having really a manufacturing defect. It is sure, there is a manufacturing defect on this handset -
