Resolved pod hd500 continuous update flash. Connect hd500 with cable connected to the guitar input holding down move key! If you turn it on normally! Holding the left arrow to disconnect the power cord and plug it in again, leaving your hd500 to factory version. Ready problem solved! Resolved pod hd 500 continuous flash uptade Connect hd500 with cable connected to the guitar input holding down move key! If you turn it on normally! Holding the left arrow to disconnect the power cord and plug it in again, leaving your hd500 to factory version. Ready problem solved!