Toyota Yaris 2012 head unit stopped working

[nghnhii]

Hi everyone,
My Toyota yaris head unit suddenly stopped working without a reason . The screen always shows up for a few seconds after I start the engine then it goes completely black. The screen was sometimes blue as well. I’m sure there is no physical damage on it. The speakers are still working well since I tried to play music for a few seconds when it’s working, so my questions are what are the possible issues? Should I check with mechanics or just replace a new unit?
Did anyone have the same problem before and how you fixed it?

Thanks a lot :)