there should be problem in hardware n software to...first let me help with software issue if your touch is not responding swicth on the cell phone and only press switch on button for a long time and after pressing 1-2 minutes u r phone will be restart.....than it problem will be solved.....if it doesnt than open the cell phone and remove the touch pad there should be a moisture clean that and definetly it work..........**** if u like my answer best of luck