My reader is a little flaky, not as bad as yours but erratic, loses data and I have now had 2 out of 3 sensors fail (sensor 2 fell off, sensor 3 tells m I'm not diabetic). It looks to me like Abbot have cut every corner possible in the production of these devices. A great idea over hyped by marketing and reduced to second rate by the accountants. This morning I phoned the number Abbot give on their Libre site, to ask why my current sensor is telling me I have been in permanent hypo since I slapped it on (finger pricks on the reader say very different). The lady told me that she could sell me product but not provide support. Oh well, nice idea, I was absolutely in favour of the Libre a few days ago but 2 failed sensors, a poor quality reader and sales prioritised over support is rapidly changing my mind. I certainly cannot take current sensor results to my diabetic clinic and I cannot recommend the system to anyone..