i've had mine 6 months and still has problems now and then syncing - and when it won't sync I found I just have to stop trying. Eventualy - a day, week maybe I'll get random message of "device found, Pair phone" and then it will sync. This is totally on Garmin end. The iPhone syncs to EVERYTHING ELSE I OWN with not problems - stereo, TV, Car, headphones, etc. Not Garmin. Constantly losing connection and then it's back to manual upload. Garmin, why on earth are you not fixing this disaster of a software bug. I'm never buying any Garmin anything again.