Nokia 6233
Mobile does not started

Dear sir,

myself ganesh dnyandeo khalekar i am using ur product nokia 6233 sir actually when i started my mobile few seconds it will again switch off..i am purchasing a new battery about 3 months..wats actually problem..i want to solution of this problem... plz help me... my phone memory still 3 mb free sir..memory card is also empty and 100% virus free..sim card is also kk... actually i stared my phone by removing SIM CARD and MEMORY CARD but stilll same problem it will automatically switch off... i great hope u will solve my problem... still i have a great confidence on NOKIA..

thanking u sir..