Infotainment display black

So my infotainment screen in my 2021 telluride went out today, was fine when I shut car off and next time I turned the car on the screen was black, radio and CarPlay won’t work, cameras don’t come on. I’ve tried the small reset button, held down power button, and even disconnected the battery at the negative connection per advice I’ve seen on forums. It still won’t power on. Any further suggestions I can try, or am I at the contact Kia point?

i have 22 telluride and 64,000 miles turned on radio one morning and all black no gps, cameras and cant use bluetooth phone buttons on steering are connected to the system. took to dealer they said out of warranty and it could be the keyboard for $511 or might be the system which is $7498 and on back order. they told me to file claim through Kia and see if they will good will it. well after another month and constant calling they said sorry they cant help. SO cant even install any updates because you need the screeen. so what do i do now. little button did nothing and Kia isn’t worth the money. for the 100,000 warranty you need to read the fine line it doesnt cover much. trying to get assistance for next step if anyone can help out???