2: the RTC battery back-up, support hot start warm start, positioning speed is greatly enhanced
3: GPS positioning data to support independent acquisition and serial port configuration, more options, more convenient.
4: positioning data also support the GSM serial port, through the AT commands and configuration, more quick and easy.
5: computer debugging video a strong hit, make dear friends faster master 868 function
6: new various microcontroller program, greatly helped by single chip microcomputer rapid development
GSM GPRS GPS+beidou function.