If you are running a modified console with Aurora or Freestyle Dash (FSD), the process is highly automated:
If an update is available (and you aren't on the latest version), a pop-up will appear stating: "An update is available for this game. To apply this update and sign in to Xbox Live, you must download it now."
Source the final Title Update (specifically Title Update 19, which aligns with the console's version of the 1.2.4 PC equivalent) from reputable community preservation sites like the Xbox 360 Unity database. Terraria Xbox 360 Title Update Download
If you are missing the final patches for your Xbox 360, you can use the following methods: Xbox Live (Official)
Select or Move and transfer the file to your primary Hard Drive . Launch Terraria. Troubleshooting Common Update Issues Game Crashes or Freezes on Launch If you are running a modified console with
The Title Update Media ID does not match your game disc region.
Insert your USB drive into the Xbox 360, go to System Settings > Storage , and format the drive for console use. Launch Terraria
The Terraria Xbox 360 title update brings a range of exciting new features and improvements to the game. Some of the key additions include: