I fired up ERA and I see this person experienced this error 6 times (if I'm reading this right). This has been stable code, has worked flawlessly for everyone else (hundreds of downloads), and for me. The Edge 1040 is a brand new device. Any idea on "System Error"? A China thing? An Edge 1040 thing? Or some issue with my code. I'm just creating a field in DeviceView initialization for a FIT Summary string write on onTimerReset().