Dell XPS 13 2-in-1 won't boot, but keyboard lights up

As per title, I have an XPS 13 2-in-1 7390, bought in mid 2020. After having used it yesterday, today it won't boot. 

Upon pressing of the Power Button, the keyboards lights up for a few seconds and then turns off again. No response from the screen. The Dell logo doesn't even show up.

Here's a few things i tried, all to no avail:

- The screen auto test works (it cycles between red, green and blue if the D button is pressed while trying to power up)

- pressing all fkeys while trying to power up

- holding the power button for 30 seconds while unplugged, and then trying again

- holding the power button for 35 seconds while plugged and leaving it be.

- Disconnecting the battery, holding the power button for 30 seconds and reconnecting the battery. 

Any help would be appreciated 

Thanks