Spark Core's LEDs both off, but board gets warm

Hello Community

I’ve contacted the support team already, but thought maybe someone from the community knows any tips as well.
So, I’ve got my Spark Core, that is connected to a 5V/3A power adapter.
I’ve turned off and on the power many times before, but just yesterday, it didn’t start on again.

When I plugged it out and connected it with USB to my Mac, neighter of the two LED (User/RGB) didn’t turn on, but the Spark Core does get noticable warm on the underside.

I can’t say wheter it’s the Power Regulator or the ARM Microcontroller but it’s definately one of both.

If the power regulator is warm, that’s ok.

Can you try holding on the MODE button before plugging in the USB cable and see what happens?