Full list of all 49 LEGO Harry Potter: Years 5-7 trophies - 34 bronze, 12 silver, 2 gold and 1 platinum. It takes around 20-25 hours to unlock all of the trophies on PlayStation 4.
Collect all Trophies
Complete "Dark Times"
Complete "Dumbledore's Army"
Complete "Kreacher Discomforts"
Complete "A Giant Virtuoso"
Complete "A Veiled Threat"
Complete Year 5
Complete "Out of Retirement"
Complete "Just Desserts"
Complete "A Not So Merry Christmas"
Complete "Love Hurts"
Complete "Felix Felicis"
Complete "Horcrux and the Hand"
Complete Year 6
Complete "The Seven Harrys"
Complete "Magic is Might"
Complete "In Grave Danger"
Complete "Sword and Locket"
Complete "Lovegood's Lunacy"
Complete Year 7
Complete "The Thief's Downfall"
Complete "Back to School"
Complete "Burning Bridges"
Complete "Fiendfyre Frenzy"
Complete "Snape's Tears"
Complete "The Flaw in the Plan"
Complete Year 8
Complete the Bonus Level
Complete the game to 100% (Single Player Only)
Visit the Hogwarts Foyer in Year 7/8
Unlocked on hitting 50% game completion (Single Player Only)
Use a Quibbler dispenser 25 times
Complete all lessons (Single Player Only)
Unlock all of the members of Dumbledore's Army (Single Player Only)
Use a Weasley box with every Weasley
Complete the scene where Hermione and Harry dance in the tent
Collect 1 billion studs (Single Player Only)
Defeat every Harry freeplay variant as Lord Voldemort
Unlock ALL of the Order of the Phoenix character variants (Single Player Only)
Unlock every character with a pet (Single Player Only)
Unlock all witch characters (Single Player Only)
Unlock every pyjama character variant (Single Player Only)
Defeat Bellatrix with Neville (Waiter) in a duel
Defeat 30 Red Caps
Unlock every bad wizard (Single Player Only)
Use the Deluminator
Defeat Bellatrix as any Sirius Black character variant in a duel