| (u32 sharedmem_size, value 0, Handle sharedmem) This does initialization for the gamecard [[System_Update_CFA|system update]]. Then this checks whether this gamecard system-update needs to be installed, by comparing the title-version of the [[CVer]] [[CIA]] stored in the system-update CFA with the title-version of the CVer title already installed in NAND. When the gamecard update doesn't need to be installed(NAND CVer title-version >= gamecard CVer title-version), this returns 0xc821180b.