I just bought a Koodo sim and I have an odd problem with it on my phone. It is a Huawei GR3 dual sim and I have only the koodo sim on it. I have 4G signal and Koodo logo but I can't send or receive any call, text or data. If you dial the number nothing will happen. In the shop that I bought the sim, they tried it on their own phone and it worked but on mine nothing happens except the 4G signal and koodo logo. I called Huawei and they checked everything and they said that since you have signal and the phone seems to be registered in the network, the problem should be somewhere else. I also called koodo twice but it didn't help. I dont know what to do! ;( Anyone has any ideas?