You can try the following:
AT!ENTERCND=“A710”
AT!GPSXTRADATAENABLE=1,10,2,1,1
AT!GPSXTRADATAURL=1,“http://xtra1.gpsonextra.net/xtra.bin”
AT!GPSXTRADATAURL=2,“http://xtra2.gpsonextra.net/xtra.bin”
AT!GPSXTRADATAURL=3,“http://xtra3.gpsonextra.net/xtra.bin”
AT!GPSXTRATIMEENABLE=1,30000,10000
AT!GPSXTRATIMEURL=1,“xtra1.gpsonextra.net”
AT!GPSXTRATIMEURL=2,“xtra2.gpsonextra.net”
AT!GPSXTRATIMEURL=3,“xtra3.gpsonextra.net”
AT+CGDCONT=1,“IP”,“your_APN”
AT!GPSFIX=2,180,300