Xbox one s turns on for a few seconds then dies

Hello! see if this helps https://www.thewindowsclub.com/xbox-one-s-turns-on-then-off-after-just-a-few-seconds

within a few seconds, after turning on the Xbox, the HDD and other internal devices must be turned on, someone may have died.

It sounds sad, but You should stop to using hard reset and go to service

Maybe this page can help. Or this
one.

Hey there. It might be a display issue. Check your connections. If you have another HDMI cable, try switching cables or if you don't , try different ports on your TV. If the Xbox light is on
in the front of the console, it won't start up unless it detects a working display. Also if all that fails, try a different TV also

No luck. I tried a different TV, different HDMI and different wall socket and it still lit up but no signal on the TV.

Hey there. It might be a display issue. Check your connections. If you have another HDMI cable, try switching cables or if you don't , try different ports on your TV. If the Xbox light is on in the
front of the console, it won't start up unless it detects a working display. Also if all that fails, try a different TV also