I downloaded the MIUI version 6 rom for the Huawei u8150, but I cannot recieve any service because the SIM card is locked and I dont know the pin. Where can I get the pin number? Are there any websites that offer to give the unlock code for free? If not, what number can I call? I have MetroPcs. How do I contact them to ask them for the Sim Card Pin number?? PLEASE HELP!!!