1. Jailbreaking/Rooting Your Smartphone
2. Crack Passwords
3. Pick Locks and Crack Safes
4. Access Locked Web Sites and Services Using a Proxy
5. Unlock Your Camera's True Capabilities
6. Eliminate PDF Passwords
7. Unlock Region-Free Encoding on Your DVD or Blu-ray Player
8. Break Into an Airplane Lavatory
9. Unlock Your Computer Wirelessly
10. Open a Garage from the Outside
Read about it here : TOP 10 WAYS TO UNLOCK THE UNLOCKABLE