I removed the hopper and the top plate around the opening (careful not to lose the screws and the trigger peg and spring), then popped off the rubber "feet" on the bottom and unscrewed the bottom cover to dump out the trapped grounds

Would not be bad but hopper broke off top of grinder tube and had to glue back together if I could get new hopper that would be nice

Both of these exhibited a specific issue -- the clear, plastic hopper on top will simply pop off and give the appearance the entire unit is dead.

Unfortunately, taking the hopper off to clean the burrs (after unplugging the unit) seems to be the only way to get it back to working order.