I saw a post on here about the same issue i am having but its been inactive for awhile and there was no resolution posted. i am trying to connect my springboard to my macbook to transfer files (music, movies, pictures etc.) After i install the file tranfering software i open the aplication and recieve the message "If your device's screen is locked, disconnect its USB cable, unlock your screen, and then reconnect the USB cable". In the post i was reading it seems some one had figured out it was an issue with files on the springboard and if deleted it solved the issue. Does anyone know what files or has a set procedure been created to solve this issue?