Samsung Galaxy Express (GT-I8730T) Firmware Overview
The archive lists 2 official builds for the Samsung Galaxy Express across 1 region (CSC). The newest one is I8730TDUAML1, released January 13, 2014 with Android Bean.
How to Flash GT-I8730T Firmware
Put the Samsung Galaxy Express into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Pick a build with the same or a higher Bit than the one installed — a lower bootloader binary will be rejected.