Thanks for your input. That's given me some confidence that the process is still working. I should have said that the app already contains a simulation mode which uses the phones accelerometer instead of the Bluetooth device (it's an angle guage essentially). The app works the same way use with a different input. The video was made using the real device. So I really hope I've given enough info. As I said, I've already requested a status update and escalated but havent heard back. I'll see what happens Monday/Tuesday before contacting them again regarding the error message.