What should I do if the in-car screen of my Kaiyi X3 is not displaying?

Dear fellow car enthusiasts, my Kaiyi X3's dashboard is showing a yellow triangle with an exclamation mark inside. Has anyone encountered this? What might be the issue?

What should I do if the in-car screen of my Kaiyi X3 is not displaying?

What should I do if my car battery is dead?

How do I turn off the center display screen in the MX5?

How do I turn off the center display screen in the MX-5?

How do I open the spare tire cover on a Kaiyi X3?

My 2008 model's central control display screen switches from Bluetooth to the radio, how can I fix it? Also, what is the password for resetting the display screen to factory settings?

I wonder who was the one person that bought the Kaiyi X3 in 2023.

What should I do if I don't use my car for a long time?

What should I do if the speedometer on my T-Cross dashboard is not displaying the speed?