Found this way to modeswitch a ZTE MF823 CWID to QMI: http://192.168.0.1/goform/goform_set_cmd_process?goformId=USB_MODE_SWITCH&usb_mode=8 However on the new PID (0x1402) interfaces 2 and 3 will be in reversed order from what we known from earlier. The QMI interface is hence #3. //M