Why are you looking for a quick code that already exists in the SW.
These are all the SW quick cheats available for RE: 4 Remake:
Max HP
Max PTAs
Max Spinel
Add Max Ammo To Current Weapons
Max First Aid Spray In Storage
Max Current Key Items
Max Current Treasures
Reset Number Of Times Saved
And on save 2 you have these cheats:
Max CP
Mercenaries [Unlock All Levels] [Unlock All Characters]
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