I believe the software posted here does not update. It is not a full feature program if you want new devices.

I tried my 700 software with my 850. It did not recognize the 850 when I did a check for firmware version. It might have been my setup, but the same setup works fine with my 850 software. I would check to be sure if the 700 software works with an 850, especially a new 850. It might have worked with the original version, but, again, I would check if it works with a new version 850.

There are 850s with URC software available on eBay, but, as always, you need to be careful that the software is the real updateable version.

The best route is a new 850 with software from an authorized dealer.