What are the possibilities of mobile phones not getting turned on

[ig prakash]

hi, i'm using a K790i model from sony ericsson. From past two days,i'm not able to switch it ON. Battery is not a problem.
what will be the other possibility...pls help

 

[bitmantra]

How you can predict that your phone battery is all right.

Use another battery matching to your handset, then see what happens.

If this doesn't work then I think you have to go to Service Center.