I have been using the Autel tool for quite some time now. I have been able to program and relearn many sensors in the past flawlessly. Lately, however, I have been having issues programming brand new sensors. I recently purchased 3 Autel sensors from Advance Auto parts like I have in the past. Out of the 3, I was only able to get 1 to program. The other 2 weren't even being detected by the scanner. At this point I'm not sure if the issue lies in the device or the brand new sensors.