HI , just bought forerunner 310 xt last week.I registered and followed all steps .Had my first run and successfully synced this with my computer .I have had 3 runs since and have been unable to upload any of them .The message that appears is that the computer has detected the device but is unable to read the activities .Can anyone help
What type of computer are you using (PC, Mac, ...)? What software are you using to sync your workouts down to your computer? What version of that software? Does the software report any errors?
