Not sure why but both my 622s recently changed their time before shutoff from the 4 hours I had set to 2 hours. I discovered this when they began giving me that message earlier than they should. Easy to fix.
Press MENU. Press 8 (Preferences). Press 4 (Updates). Arrow left to the hours box. Arrow up to your desired setting. Arrow right and up to SAVE. Press SELECT
Press MENU. Press 8 (Preferences). Press 4 (Updates). Arrow left to the hours box. Arrow up to your desired setting. Arrow right and up to SAVE. Press SELECT
