I was recently on a longer bike. I did not have my 840 Solar with me and I was using my older 530. I didn't pay much attention to battery life as my 840 has been unreal. Anyways, it went into battery save mode and never died but when I went to upload the file it did not work. I assume that was the issue as it had been working fine the prior few days.
I tried online repair tools to no avail. Does anyone have ideas how to repair it without a Windows computer?
Thanks!