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Upgraded from Connect to Express. Express says "the specified unit ID is invalid".

Former Member
Former Member over 11 years ago
I have a Forerunner 405CX. Upgraded from Garmin Connect to Express. The forerunner wound't connect to Express, so i removed it and tried to add again. But when i do, i get a screen with no serial number and the message that the specified unit ID is invalid.

  • 0 over 11 years ago
    Scott

    You might have some left overs from the ANT Agent. Please use the instructions below to clean up the computer then pair the 405CX with Garmin Express again.

    1. Delete the contents of the C:\Users\yourusername\AppData\Roaming\Garmin\Devices\

    1. Press the Windows Key + R key together
    2. Type this exactly, %Appdata%
    3. Click OK
    4. Open the Garmin folder
    5. Open the Devices folder
    6. Delete the numbered folder (unit id of the fitness device)

    2. Restart the computer.

    3. Pair with Garmin Express again.

    Curt