What should I do if the battery fails a firmware upgrade?

  1. Remove the battery after upgrading other modules.
  2. Reinsert the battery into the aircraft and power on.
  3. Restart the remote control and reconnect it to the aircraft.
  4. Save a new upgrade file to the SD card.
  5. Reinsert the SD card to the aircraft to start upgrading.

View our step-by-step firmware update tutorial in the knowledge base.