On your PC

If you follow the link below

Click on COORDINATOR UPDATE

Click on PC DOWNLOAD

Run the downloaded file

Click on NEXT

Click on INSTALL

Wait for it to finish

Click on RUN

Click on START

Plug your Coordinator into the USB port on your PC

Click on NEXT

If the Coordinator has old firmware then it will say

FIRMWARE UPDATE REQUIRED

Click on UPDATE

It will then start to carry out the Update

This can take at over half an hour

Once it finishes you should be able to close down the Update Tool

And Remove the USB Dongle/Coordinator