I am an installer and pulled an HC-1000 and an HC-300 out of a house to replace with an HC-800 a while back and the customer gave me the 2 old controllers. The HC-300 had a failed power supply and I replaced it. It is now working and the HC-1000 is working as well. Is there a way to get the license working for mobile devices? A friend told me that you cannot even buy a license for these old controllers any more, so you would have to use a system remote to control the system. This is not well documented, so I am confused as to whether or not I can get this working. I also was told that these controllers would not run anything above 2.5.3, but when I connected to them and ran update manager, they were able to both update to 2.8.1.