I have noticed that GLi.Net host two Firmware versions for the Quectel RM520 Modem, which one is the best for the X-3000? Thanks
RM520NGLAAR01A08M4G_01.203.01.203.zip
RM520NGLAAR03A03M4G_01.201.01.201.zip
based on the source of the FW link, it's R03.
Thank you, for the information