Phone problem if i put any sim card its not working ,its showing as "NO SERVICE".i need solution.

Hi im josh in cebu phils. friend if you put your sim card it will displays "NO SERVICE" it means that:
- your phone is lock to only one network or of that network you are using thats why when you used another sim the phone displays no service.
- your sim card has no problem it is just your phone that is lock to other network and only open to your current sim you are using.

Solution: you need to unlock your phone so that you can use other network you need to go to the network provider and ask them to openline your phone. or you can go to the nearest mobile technicians around you and let them do the job.it is just a software deal.it could be done in a short time. So go on. Hope i helped you friend good luck!