On the back of the Millennium 4,push the tab and lift off the battery cover.
Obtain two (2) fully-charged AA alkaline batteries.Match the + and – marks on the batteries to the + and – marks in the battery case,then insert the new batteries.
Press the battery cover back into place.The tab should click when the cover is locked.
Test the unit by pressing POWER and any mode key (e.g.AUDIO,VCR,TV,or CBL).If the batteries are inserted correctly,the LED will blink once.
NOTE: Whenever batteries need replacement, the Millennium 4 will blink twice with every key press. Simp y replace the batteries and the Millennium 4 will be restored to its full functionality, complete with your favorite settings.