You have downloaded PART 3.pkg . Now what? Do not install it yet.
A poorly signed PKG or one meant for a different firmware (e.g., 4.50 instead of 4.90) can corrupt system flash. Always ensure the repack is labeled for your CFW version.
A "Repack" is essentially a community-optimized version of the patch. Original patches can sometimes be messy, requiring multiple folders to be moved manually via FTP. A .pkg repack simplifies this into a one-click installation, reducing the risk of "Corrupted Data" errors or broken textures during gameplay. Final Thoughts