Gold Bricks
When you have unlocked the Leaky Cauldron hub area enter Wiseacres Wizarding Supplies in Diagon Alley. Go upstairs and talk to the vendor to be able to enter the following passwords and get the corresponding Gold Brick.
Gold Brick 1:
Enter QE4VC7
Gold Brick 2:
Enter FY8H97
Gold Brick 3:
Enter 3MQT4P
Gold Brick 4:
Enter PQPM7Z
Gold Brick 5:
Enter ZY2CPA
Gold Brick 6:
Enter 3GMTP6
Gold Brick 7:
Enter XY6VYZ
Gold Brick 8:
Enter TUNC4W
Gold Brick 9:
Enter EJ42Q6
Gold Brick 10:
Enter GFJCV9
Gold Brick 11:
Enter DZCY6G
If you need more help, we've got more LEGO Harry Potter: Years 1-4 cheats and also check out all of the answers for this game