Maintaining compatibility between DLC and the base game requires specific Title Updates (TU). JTAG/RGH systems allow manual management of these updates to ensure stability. Technical Implementation
Some LP2 DLC was notoriously "on-disc," meaning the files were already there but required a small license key to unlock. Modded consoles can trigger these unlocks without an official purchase.
JTAG and RGH modifications allow users to run unsigned code and bypass regional or license restrictions. In the context of LP2, this provides several benefits: