How do I master reset my Forerunner 310XT?

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There are a few instances in which a master reset (or unprompted reset) can be performed on the Forerunner 310XT. All data on the fitness watch will be erased.

To perform the master reset:

  1. Power Forerunner off
  2. Press and hold Enter and Mode buttons
  3. Press and release Power button
  4. Press and release Lap/Reset (watch will power off)
  5. Wait 3 seconds
  6. Release Enter and Mode

The reset on the Forerunner 310XT is only successful if the device finishes powering up, and goes to the setup wizard. Repeat the steps again if the setup wizard does not appear.

Leave the device outside with a clear view of the sky for a minimum of 20 minutes to acquire satellite data once the reset and setup wizard are complete.

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