Nil network reception

[AnandSRM]

My phone C1205 is not detecting the network signals(not a problem with SIM as i've tried other SIM cards too) because of which i'm not able to call or receive a call.Please suggest me on this issue.

P.S: This is the first time i'm experiencing the problem.

[Thommo]

Although your SIM may work in other devices you often find that SIM card can often cease to work in some device and can often be fixed by visiting your network providers store or asking them via phone etc for a new one - If you do get one and it still fails then you need to either return your device to the place of purchase or contact Xperia care to have your device inspected http://www.sonymobile.com/global-en/support/contact-us/