Originally Posted by Vireo

I got home from my 2,000 kj commute and went to DL my ride data. CPU said "HOST" but neither Training Peaks nor PowerAgent would recognize it. I took it off the USB cradle several times and made sure I heard a good click. I then realized "hey the CPU displays "HOST" even when not in the cradle. I pushed mode and select and the screen wouldn't change. Just for kicks I docked it on the bike and gave the wheel a spin and still nothing. So I googled and found this thread. This post in particular caught my attention. When I removed and reinstalled the battery on the CPU I lost fours of ride data. So beware....

Originally Posted by Vireo

my apologies jrobe.

When I DL'd my PT today, yesterday's ride data was on there. Last night when I removed and reinstalled the battery the screen displayed zeros for all the values. I assumed that since the CPU had zeros for every value that there was no data. But in fact yesterday's data was still there. Thank you for your post. It gave me the courage to remove and reinstall the battery to unfreeze the CPU.