I've just taken my Clover Mini out of the box and it is not turning on

1. Plug the black power brick’s circular cord into the white Hub attached to Clover Mini
   
2. Plug the black power cord into the black power brick on one end and plug the other end of the cord into a power source for at least 30 minutes
   

I've plugged in the Clover Mini and it still isn't powering on

1. Unplug all cables from Clover Mini hub
2. Press and hold the power button for 20 seconds, located in the back receipt compartment of your Clover Mini
3. Plug the black power brick’s circular cord back into Clover Mini’s Hub
   
4. Clover Mini should power on and you will be able to see the Clover logo display on the screen. Once you see the Clover logo display on the screen, plug in any other connecting cables and cords that were originally attached to the Clover Mini, or that you would like to attach.