If your COROS watch cannot be detected by the computer when connecting to add map or music files, please follow the steps below.
Compatible Devices
The following COROS watches support a computer hard drive connection for transferring maps and/or music files: PACE 3, PACE 4, PACE Pro, COROS NOMAD, APEX 4, APEX Pro, APEX 2, APEX 2 Pro, VERTIX, VERTIX 2, VERTIX 2S.
Note: COROS DURA, PACE 2, PACE 1, and APEX 42mm/46mm do not support hard drive connections for file transfers.
Troubleshooting Steps
- Restart your computer.
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Restart your watch. Turn off the watch via System > More Settings > Turn Off, then turn it back on by pressing and holding the power button until the COROS logo appears:
- PACE 3, PACE 4, PACE Pro, COROS NOMAD, APEX 4 — lower right button (BACK/LAP button)
- APEX Pro, APEX 2, APEX 2 Pro, VERTIX 2, VERTIX 2S — top button (LIGHT button)
- VERTIX — middle button (Digital Dial)
For a full overview of buttons on each device, see Button and Watch Layout.
- Connect the watch to your computer using the correct charging cable. Make sure the cable is fully seated and the connection is secure. Try a different USB port on your computer if available.
- Wait at least 2 minutes for the watch to appear as a drive. Watches with more stored data may take longer to load.
- If the watch still doesn't appear, unplug the watch, power it off (System > More Settings > Turn Off), plug it back in while powered off, wait 15 seconds, then power the watch back on.
- If the issue persists, try a different USB cable or computer to rule out a hardware compatibility issue.
Note: COROS watches can only connect to Mac or PC computers for file transfers — phones and tablets are not supported. A very small number of older computers may also be incompatible.
COROS watches do not store daily tracking or workout data on the hard drive. To access your activity data, sync your watch with the COROS app or export activities as .FIT files. See Manually Import/Export an Activity to 3rd Party Sites.
Related Articles
- Downloading Maps to Your COROS Watch
- Map Manager
- Button and Watch Layout
- COROS Device Not Powering On or Charging
Contact COROS Support
Need help or have additional questions? Reach out to a COROS Expert in one of the following ways:
- Submit a Support Request Form – Click here to get started
- Send a message via the COROS App: Open the COROS App > Profile Page > Customer Support > Contact Support > Submit.