How to Factory Reset Cisco Phones

This guide takes Cisco SPA502G running firmware 7.6.2c as an example.

  1. Press the Settings key, and navigate to Factory Reset.
  2. Press select.

    The phone prompts you whether to reset all parameters to factory default values.

  3. Press ok.

    The phone will be reset successfully after startup.

    CAUTION: Do not power off during phone startup.