I have a Microsoft Surface Laptop 3 (1868) - 13.5 inch. It is the version with the i5, 8 GB of RAM, and 256 GB SSD. I believe the motherboard number is M1098028-008. It has been dead for a year and a half. I tried everything that is suggested on Microsoft's support website. I have the original power supply, and the white light on the power supply's connector turns on and stays on when it is connected to the laptop. Nothing happens when I try to turn on the laptop. The caps lock key's light does not turn on. There is absolutely no sign of life. I have also tried charging the laptop using the USB-C...

I'm Mike, and I registered to see if I can get some help troubleshooting a Surface Laptop motherboard. I'd rather repair it than replace it. Replacing is no fun. It's too easy!