I guess your phone is locked to particular Network.To fix this problem you need to have unlock your phone.You can unlock your Samsung Tocco phone from network lock using unlock code. Unlock code is the best and safest way to unlock phone. You can get the unlock code for your phone from your Network service provider or any third party online vendors like http://www.simpleunlocking.com/samsung-tocco/rs16wp9/ here you need to specify your country,current Network name, IMEI number of your phone. Then they deliver unlock code to you through mail.And you cam get free unlocking instructions from the site http://www.mobileunlockguide.com/samsung-tocco By using this unlocking instructions you can unlock your phone easily.
sahana, September 2013
