Reset Guide to defaulting a BrightSign Player
First, Disconnect the power to the BrightSign unit.
Located on the front of the unit next to the Ethernet port is the Reset & SVC.

While holding down the RESET & SVC buttons power up the player holding these down. When the red Busy light starts to flash release the buttons.
Let the player boot back up.
Your unit is now defaulted back to factory settings.