I was having the heart rate monitor issue of having a reading when not wearing, etc. I have tried updating through Garmin Express and Web Updater, both say that the version 7.1 that is on the watch is up to date/latest. Also downloaded the beta 9.04 and copied it to the \Garmin folder from both a mac and PC, will does not prompt to update. Tried the 8.7 that also came with the beta, it will not offer to update it. Have reset all settings and done a master reset with no luck.
Thanks,
Alan