Apple is expected to release a new iPhone later this year, with rumours increasing that the launch will be in early September.
The folder contains code that says the phone will display a photo of a person holding an iPhone while touching their thumb on the home button and then will display a fingerprint image that changes colour during the setup process.
Apple bought fingerprint sensor company Authentec last year for $365 million.
Authentec makes technology that cannot only identified fingerprints through scanning but also identifies the different fingers, so that each finger can be assigned a different task.
It's unclear whether Apple would use fingerprint scanning as a way letting people log into their phone, rather than type a PIN, or whether it would be linked to an eCommerce transaction system.
Have you seen the latest iPhone 5 Cases at Case Buddy.com.au?