My reader was purchased through Abbott and is registered with them. (I am a registered user) I received an email from Abbott advising me to update my reader to the latest version, which is 2.4.8. They say this reader has •Even better first day accuracy – Sensor reading closer to blood glucose1 •Even better overall accuracy for the entire wear period2 I was unable to download this latest version because my reader is incompatible. It is quite old and is version 2.1.2 0.94. I contacted Abbott and they are sending me a new reader already updated, free of charge. I just thought I would share this with you all in case you are in the same position.