Symptoms
- Update progress bar freezes partway through
- Error message saying update failed
- Drone or controller won't power on normally after a failed update
- App shows the update as needed again and again
Likely causes
- CommonWi-Fi or app connection interrupted during the updateUpdates require a stable connection throughout the process.
- CommonBattery too low during the update processAn update interrupted by power loss can leave the firmware incomplete.
- PossibleApp version incompatible with the update being installedAn outdated app can fail to properly deliver the update.
- PossibleUpdate file itself downloaded incompletely or corruptedA poor download can cause the installation to fail partway.
- Less commonFirmware chip damaged, requiring manufacturer serviceA serious fault beyond a normal failed update recovery.
What to do
- Make sure the drone battery is charged to at least 50 percent before retrying.
- Update the drone app itself to the latest version first.
- Keep the phone and drone close together with a stable Wi-Fi or direct connection throughout the update.
- Do not power off the drone or close the app during the update process.
- Retry the update from the beginning rather than trying to resume a partial one, if the app allows.
- Try the update on a different phone or tablet in case the app has a device-specific issue.
- If the drone won't power on normally after a failed update and retries don't help, contact the manufacturer's support for a recovery procedure.
When to call a pro
If the drone won't power on normally after a failed update, contact the manufacturer's support or a drone repair specialist for a recovery procedure.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.