if it’s a brand new Framework you need to plug in the charger for a while, then you’ll able to start it!

Press one time. But note that my machine apparently has a malfunctioning backlight, so the only indication it was on was the ring of light around the power button. I had to hold the screen in bright sunlight to see anything on it. (Still waiting for support response).

Press it once and it’ll turn on, just like a normal computer (except Chromebooks). If it doesn’t then batts most likely dead or there’s a fault in the system

It could be that the brightness is set too low, I think it’s the f8 key that brightens the display :)

So I managed to over tighten the screws and mine wouldn’t boot. I loosen the screws and it booted right away.

Lol, you just press the button. If that doesn’t work your battery may be dead or you may have a faulty unit

Have you just got it? You will need to plug it in as the battery gets disconnected with the BIOS option before shipping, plugging it in reconnects it