I have motorola c168i imei no is 011219008213855

Hi is your Motorola C168i mobile is asking for sim network unlock pin code once you insert your sim in it then it mean your phone is locked to some other network provider due to this it wont accept any other GSM sim until you unlock it ..You can easily unlock your phone using sites like ProUnlocking.com here they are rendering network unlock code for all mobile models at reliable cost ...You first check that whether the code is available for your country and network provider .If yes then pay for it and unlock your phone then freely use it with any GSM sim ...