I just happened to unlock my blackberry phone. so thatís why I want to know whatís the problem in it, can you all please tell me. Well the thing is that after unlocking my phone shows no signal and only shows a sign of SOS that means only for the emergency calls. So can you all tell me what wrong could have gone with the phone? Please do suggest me something on this as this is the case from the past few days and I am not able to make or receive any calls at all. so please suggest me some solutions.