Suunto is committed to achieving Level AA conformance for this website in conformance with the Web Content Accessibility Guidelines (WCAG) 2.0 and achieving compliance with other accessibility standards. Please contact Customer Service at USA +1 855 258 0900 (toll free), if you have any issues accessing information on this website.

What can I do if DM5 does not recognize my Suunto dive computer?

If your Suunto dive computer is not recognized by DM5, the following steps may resolve the problem:

  1. Connect your dive computer to your PC using the supplied Suunto USB cable. Connect to a USB port that is integrated into your computer. Avoid using USB hubs, port replicators, or similar peripherals.
  2. Try another USB port on your PC or use another Suunto USB cable (if available).
  3. Ensure that the connectors of the cable and the dive computer are clean and free of salt or sand.
  4. Check the battery level of your dive computer. If it is too low, your device may not be recognized or syncing may fail.
  5. If the above did not help, the issue may be caused by missing or wrongly installed software drivers. 

Note: Please be prepared to answer the following questions when contacting us: Are you a Windows or Mac user? Which operating system version is installed on your computer?