CoreBox 256G20104989 doesn't boot

My CoreBox X is completely dead. I tried using the power supply from another CoreBox X I own, but nothing happens. What else can I try?

After doing what on the PC ?
Did you try to enter the BIOS ?
You can press F12 while turning it on.

I can’t power it on, no blu light pressing the button, completely dead. The power supply works fine on another corebox x.

A component on the board is broken.
If it is under warranty, you can contact support via the Chuwi website.