Solution 


Check the setting options of the device, 

Settings -> Display -> Startup&shutdown -> Startup Channel


Last shutdown channel or Default startup channel can be selected and modified according to your preferences every time the DVLED display is turned on.


Last shutdown channel - On startup, displays the channel last used before shutdown

Default startup channel - On startup, always displays the user-defined channel. Use the dropdown bar to select the desired channel to always display upon startup.