Usually, a Flowbird Access S5 terminal comes complete with the appropriate application software and settings.
The CWT application software itself is subject to continuous improvements which means that all terminals that can run the CWT application will benefit from being updated now and then.
It may also be necessary to update AVR firmware when the CWT application and Operating System (OS) have been updated, see more in the CWT Software Configuration Handbook.
Finally, it might be that the operating system (Windows EC7) needs to be updated.