The default system of G530 5G Router is Wlink OS (Based on Linux). Time to time, the users have the requirement that they want to load some special software package they want to achieve their application.
Good news is that Wlink G530 5G Router is upgradable to OpenWRT firmware now. Wlink Firmware could be upgradable again if you don't need OpenWrt anymore.
Note: The one who would like to use OpenWrt should be well know enough OpenWrt.