Discovery Pro head unit not turning on

[Dub-noob]

Hi Folks,
This morning my Discovery pro head unit decided not to turn on. Looking closely I can see some backlight does power up but the screen never comes alive properly. None of the buttons do anything and no radio or input from Apple CarPlay etc.

Any ideas what to look at? Thanks.

 

[RobertO2023]

Try holding the power button down until it reboots. May work?

 

[Dub-noob]

Weirdly after leaving it for a few hours while at work it’s decided to work again.