"Go to your local hardware store and buy a 1/4 inch sized Allen wrench also called a Hex key or Hex tool. It is an L-shaped, six sided tool. These usually come in a small set for about $4.
Look under the disposal for a mysterious hole at the center. Place the short end of the hex tool into this hole and rotate it around a few times, back and forth. If you have a small bog of eternal stench in your sink like I did, and you’re lucky, you should see/hear the water immediatly drain.
Try the switch again. With luck, your disposal will be back to hacking up your food bits."

Fixing a Broken Badger 5 Plus Insinkerator Garbage Disposal - rob’s blog