K1+K2+K3 combo is a soft reset of the application stack.
so is the reset command.
SLEEP is a hard (but safe) shutdown. this is what you want to try next.
(i’d actually recommend using SLEEP at the end of any norns session.)
white button is like performing SLEEP, but unsafely, may damage filesystem, and should only be used if both the menu and K1+K2+K3 are unresponsive.