Hi, i recently used yellowsn0w to unlock my 3g iphone, and it worked fine with 0.9.5 and my SIM from India. All the features worked, no problems at all. Then, i started to use my Canadian SIM, and it dint work. I updated yellowsn0w to 0.9.6, and it worked immediately. everything seems to work fine, but i cant send or receive any SMS. I put my SIM in another phone, and SMS worked. I reset my network settings, and I still have the same problem. Any help?