E-Pin Optical's USB memory drive with FingerPrint Protection FAQ - Frequently Asked Questions - Question and Answer - Q6: What should I do if my fingerprint suddenly does not work to get access to my files? A6: E-Pin's Optical FingerPrint USB drive has established careful considerations. The registed "Bio Flash" program inside the device enables only the owner to activate and get access to the files inside this Optical FingerPrint USB drive. This can be done by activating the backup password protection loop in the "Bio Flash" program. The owner of this Optical FingerPrint USB drive is in total control.