Zwift Hub Autocalibration [Firmware v4.0]

Hey everyone -
We’ve been investigating why some returned units are not taking the firmware update as expected. Thanks to all those who’ve been working through this with us! There’s a few steps we’d like to detail

Before updating firmware

  1. Verify you’re using the latest version of Zwift Companion. Please check our Latest Version thread, and confirm build numbers on the Google Play Store / Apple App Store
  2. Keep the phone within line of sight of the Hub trainer.
  3. Do NOT let the phone sleep. Be sure your phone is charged fully, or plugged in to AC power.

If you attempt a firmware update and it fails:

  1. Force-close the Companion app and re-open. Rebooting the phone would ensure a clean restart.
  2. Do not press the Forget button in the Companion app.
  3. Do not uninstall and reinstall the Companion app.

If several attempts fail, contact us for next steps.

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