Raspberry Pi Sense HAT not working

Here are some suggestions for troubleshooting the Raspberry Pi Sense HAT

Try these in the order written:

• Update your Raspberry Pi - This will bring in the latest software for the Sense HAT. Open a Terminal window and type the commands below: 
  • sudo apt-get update
  • sudo apt-get upgrade

• Install the Sense HAT software - This may already be installed but to make sure, enter the following command in a terminal window:
  • sudo apt-get install sense-hat

• Force the Sense overlay to load - Sometimes a quick configuration change is required to force the Sense HAT overlay to load, to allow the Pi to recognize the device. To do this, follow the steps below:
  • In a terminal window, enter sudo nano /boot/config.txt
  • Add the following line: dtoverlay=rpi-sense
  • Reboot your Raspberry Pi (you can use command sudo reboot)