Nokia/5310 xpress
Repai

I am vikas from india, i bought a nokia 5310 xpress music on 7-1, after 4 months it got problems, i went to nokia care, then they changed mother board, again it got problem, and now the nokia care people telling that the physical condition is not good, we cant repair, i dont understand what they mean, and phone is still in warranty period .so i want either it should be repair or replace. my no is 919962397655