No power in the cell phone .

Question

There is no power at all ,
It cannot be a Water issue ,
The red light on the right lower part of the cell phone is broken ,
Bought the cell phone in March 2008 ,
broke it in May and got it fixed for 3000 Rs ata local Sony Ericson Service Center .
After that the phone fell down and the Mic stopped working .
For a day I used the earphone + mic to make calls ,
After a day the phone was dead .
HELP !!