"Quick unlocking" refers to the process of easily and rapidly unlocking something, typically a device or object, without any complications or delays. Full definition
It has fingerprint sensor for quick unlocking along with array of different sensors like Gravity, distance and light. (techandroids.com)
According to the website, Devil May Cry 4 Special Edition will include several quick unlock DLC packs which will allow players to unlock extra difficulty levels, secret characters Super Nero and Super Dante and the color variation costumes without actually playing the game. (geekreply.com)
Samsung is also looking at leveraging advanced facial recognition software along with the iris scanner to provide a super quick unlocking experience. (xda-developers.com)