Hi @karthick.ng
What module type on your FX30S? WP8548 or WP7702 module?
You can check it on the device label or use ATI3 command.
FX30S 3G firmware package for FX30S(WP8548), FX30S LTE Cat-M1/NB1 firmware package for FX30S(WP7702)
You can refer to this document. AirLink FX30S User Guide
All source code and firmwares for FX30S here https://source.sierrawireless.com/resources/airlink/software_downloads/fx30-firmware/fx30-firmware/#sthash.mqdI3f2B.WmE2m8jk.dpbs