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Place it in the specific "PSV Updates" folder on your PC (usually Documents/PSV Updates ).

Open the .PUP file in a hex editor (e.g., HxD). The first four bytes should be 7F 50 55 50 ( .PUP magic number) followed by Sony’s header. If you see PK or MZ , it’s a ZIP or EXE virus – delete immediately. psp2updatpup new download