Symptoms
- App shows controller as disconnected
- App won't detect the controller at all
- Connection drops shortly after connecting
- App crashes when trying to connect to the controller
Likely causes
- CommonPhone or tablet Bluetooth or USB connection not established properlyA loose cable or unpaired Bluetooth link prevents communication.
- CommonApp needs an update to match current controller firmwareMismatched versions between app and controller are a common cause.
- PossiblePhone's battery saver or background restrictions closing the appAggressive power management can interrupt the connection.
- PossibleUsing an unsupported or outdated phone operating system versionOlder OS versions sometimes lose compatibility with newer app updates.
- Less commonController hardware fault in its USB or Bluetooth moduleWould prevent connection across multiple phones.
What to do
- Restart both the phone or tablet and the controller completely.
- Update the drone app to its latest version from the app store.
- If using a USB cable connection, try a different cable and port.
- If using Bluetooth, unpair and re-pair the controller from the phone's Bluetooth settings.
- Disable battery saver or background app restrictions for the drone app.
- Test the connection with a different phone or tablet if available.
- If a different device also fails to connect to the same controller, the controller's connection hardware may need professional repair.
When to call a pro
If a different phone also fails to connect to the same controller, a drone repair specialist can check the controller's connection hardware.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.