Pioneer AVH-X5700BHS Owner's Manual page 76

11. After starting, there will be a progress bar while updating.
12. Display will show "It succeeded..." when the update is complete.
13. The product will reboot after the update is finished. Do not touch anything even when the screen is
blacked out. After it has finished rebooting, the screen will return to the menu screen.
14. The firmware update is now complete. Your Pioneer DVD Receiver is now ready for use.