Wondering if anyone has come across this problem before, or has any ideas? I have a Garmin Edge 705, and use on both a Giant TCR Advanced (with built-in ANT+ compatible speed/cadence sensor) and my On One carbon 29er, with a Garmin speed/cadence sensor.
I use the Garmin with both an HR sensor (the original that came with it) and the speed/cadence sensors. I was logged onto the Garmin Connect site recently and it recommended I upgrade to the latest firmware, so did so. No idea what I previoulsy had, but the Garmin is now Software version 3.30 and GPS version 2.10
Since the firmware upgrade, the Garmin does not seem to be able to stay "connected" to the speed/cadence sensors for more than about 20 seconds. When I turn it on, it will recognize them and show, for example, cadence - but then the cadence will go to ---- (not zero, meaning it isn't connected). A rescan for accessories will allow it to connect for another 20 seconds or so, then same problem.
I will fully admit the Garmin has seen its fair share of drops to the floor, endos, wrecks, etc so would have just put this down to "one knock too many", except that this only happened when I upgraded the firmware.
Anyone seen this behavior before, or have any ideas? Is it possible to downgrade to previous versions of the firmware, and if so any ideas where to locate?
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