Hi all. Got this problem. When i start IMU everything is working ok. But after aprox. 30-40 mins i get this message in Log (Error during reading messages from SIM memory), and no more messagees displayed. Using latest ver. of IMU with Huawei K3765(latest firmware and driver). Can anybody help me? Tryed diferent baud rate, nothing helped. I have IMEI based license so i can not change modem to try another one :-( Thank you for reading.