Harry Potter And The Deathly Hallows, Part 1 (Wii)
Select "Options" at the main menu, then select "Unlockables". Then, enter one of the following codes to activate the corresponding cheat function.
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Stronger Protego Totalum charm
Press C, A, 2, Minus, Down, B to strengthen your Protego Totalum charm so that nothing can get through it.
Strategy guides from GameFAQs