Fix : Plug the clock into a wall adapter or USB port using the provided cable for a permanently lit screen. Keep batteries inside as a backup for power outages. Cause : There are no backup batteries installed.
Press the MODE button twice until the default date appears. dt-6507 led mirror clock instructions
The DT-6507 is designed for plug-in use to maintain the bright LED display. Fix : Plug the clock into a wall
Press and hold the button for 3 seconds until the hour digits begin to flash. dt-6507 led mirror clock instructions
Press and hold the MODE button for 2 seconds until the hour digits begin to flash.