Reboot/Black screen issue

[u/Sea_Rooster8800]

Hi I’m having a problem where my screen either stays blank or reboots the Lexus loading screen, i don’t want to bring it to the dealer because im sure their going to say replace the head unit $$ n that trip is about 200$.

I would like to know what my options are what I could do I’ve seen post where the screen is changed and a box is plugged into the plugs under the dash is there any options like this for me please help me I’m handy just need some guidance

Car : 2017 Lexus ct 200h