Code i have a dual xdvd710 my battery went dead i can't remember the code what do i do

Put in the same number 3 times (example 1111) until it locks and then push in the mute bottom and hold it and while you hold the mute button with your other finger push in the volume control (power button) and hold both of them until a new screen comes up and then put in 122164 and hit OK and that should work.

Put in a cd and play and then hit the stop twice, then put in 24406 and hit ok. should work