Should you need to restart your Playdate—to reboot it from a halted state, for instance—you can do so by pushing the restart button inside the crank dock.
- Undock the crank.
- Look for a very small hole in the back of the crank dock.
- Insert a paperclip gently into that hole to press the restart button once.
Your Playdate should now restart itself and boot up to the home screen.