strange problem with w55oi

[swastika]

sir,i have a w 550i of sony ericson.But from few days ago we faced up with a new problem.When i enter my airtel sim then it works fine,but if i change my sim with other network sim then its show limited service only.when i search for another network in my handset,only airtel shows there.i flashes it twaice and restoring all setting many time,but still i have same problem.Plz anybody tell me the right solution................

[baraka42]

check with manual network selection and check if there is 900 mhz network is awailable ?

[ram_123456789]

may be u need the sim lock patch...

to use with other network,