Davinci mini w DEAD!

If this has been addressed before I apologize. I searched and searched but didn’t find anything.  Had a power failure during firmware update and now my Davina mini w is just humming and extruder is heating. The light on front won’t come on and computer doesn’t register printer it’s plugged in.

Is there a way to fix this? I’ve tried holding down the button while turning power on. Nothing happened