[Resolved]  Nokia 5300, Ce0434, 355550 / 01 / 791652 / 40538139. — auto off

sir,
i purchsed this cell in sep2007.for the past six months my cell is getting off automatically .It is getting started only manully after repeated try and sometimes not.I have shown in our nearest center in angul, orissa.they tried for five days and reported it is not repairable.they returned my cell on[protected].due to my negligency i lost my warrenty.i am in deep sorrow because with much difficulty i collected rs.7400 to purchase this mobile.NOKIA is like mother of all mobiles, so please dont broke my heart i have great faith in my company.
thank you.my phone [protected].