In Harry Potter and the Deathly Hallows: Part 1 for the Xbox 360, there are a couple cheat codes that you can use to unlock a few helpful things, and some harder challenges if you’re looking for a challenge.
In the Options menu, select Unlocks. When you’re in Unlocks, you press a series of button combinations to unlock cheats. Here is a list of cheats I’ve found so far:
Unlock Elite Challenges – Y, Up, X, LT, RT, A
Unlock Stronger Potions – X, Left, Right, A, RT, RB
Unlock Stronger Protego Charm -Y, B, Up, Left, RT, Right