More than likely, the plane came from an international destination and never regained the signal inflight (though, even though it's not supposed to, I've seen this happen), or back on the ground. The controls are as limited as CALflyboi stated... this is also an issue that's been discussed in several threads. It sounds like it's possible that the FA didn't quite understand the system, but a lot of that is due to the lack of information provided by the company, and a lack of their responses to our many complaints and questions about the product.

Not cool for you to suggest it's possible that she might have just wanted the system to not work for her own reasons... and I can guarantee you, there is no "fix" for this.