What this connection problem means
If your Autel Evo Nano keeps disconnecting from phone, the issue usually involves the drone-to-app link, not the aircraft itself.
The most common causes are unstable Wi‑Fi, app permission problems, outdated firmware, interference, or an incompatible phone setup.
This guide explains how the Autel Sky app, your smartphone, and the Evo Nano connect, then walks through the practical fixes that restore a stable control link and live video feed.
How the Autel Evo Nano connects to your phone
The Autel Evo Nano uses the Autel Sky app on iPhone or Android to connect your mobile device to the drone.
In most setups, the phone connects to the aircraft’s Wi‑Fi network, allowing flight controls, camera previews, firmware prompts, and media downloads.
Because this link depends on radio conditions, software compatibility, and correct permissions, even a small issue can cause repeated drops.
When the app loses the signal, you may see freezes, a black screen, delayed controls, or a full disconnect.
Common reasons the Autel Evo Nano keeps disconnecting from phone
- Weak Wi‑Fi signal: Distance, walls, and environmental interference can break the phone-to-drone connection.
- Phone compatibility issues: Some iOS or Android versions work better than others with the Autel Sky app.
- Autel Sky app bugs: A corrupted install, outdated version, or background restriction can interrupt communication.
- Firmware mismatch: The drone, remote, and app may need matching updates to stay stable.
- Overheating or power issues: Low battery or thermal stress may reduce performance and trigger disconnects.
- Interference: Crowded Wi‑Fi channels, power lines, metal structures, and urban congestion can weaken the link.
- Phone settings: Low Power Mode, battery optimization, VPNs, and switching between networks can interrupt the session.
First checks to make before changing settings
Before you troubleshoot deeply, confirm the simple basics.
These quick checks often solve the issue without extra steps.
- Charge the drone battery, controller, and phone before flight.
- Restart the drone, controller, and smartphone.
- Close other apps running in the background.
- Turn off VPN, hotspot, and unnecessary network switching features.
- Keep the phone close to the controller or the drone during pairing.
- Test the connection in an open area away from heavy interference.
Check the Autel Sky app first
The Autel Sky app is the main software layer between your phone and the Evo Nano, so app instability is a common cause of repeated drops.
Start by updating the app from the Apple App Store or Google Play Store to the latest available version.
If the issue continues, force close the app and reopen it.
On Android, clear the app cache if the interface feels laggy or fails to load properly.
If that does not help, uninstall and reinstall the app to remove corrupted files or incomplete updates.
Grant the right permissions
The app needs specific permissions to work properly on mobile devices.
Denied permissions can interrupt access to the drone feed or prevent stable communication.
- Location: Required on many Android devices for Wi‑Fi and device discovery.
- Local network access: Important on iPhone for connecting to nearby devices.
- Camera and storage: Helps with media capture and file saving.
- Bluetooth and nearby devices: May be needed during setup or pairing workflows.
Update firmware on the drone and controller
Outdated firmware can cause compatibility issues that appear as random disconnects.
Check the Autel support prompts inside the app and update the Evo Nano, controller, and any related components as instructed.
During updates, keep batteries charged and avoid turning off the drone, controller, or phone.
A failed update can create more serious connection problems, so wait until every part reports successful completion before testing again.
Reduce interference and improve signal stability
Because the Autel Evo Nano depends on wireless communication, environment matters.
If the drone keeps dropping from your phone in one location but not another, interference is likely the problem.
- Fly in open spaces away from Wi‑Fi routers and large crowds.
- Avoid launching near concrete buildings, vehicles, and metal structures.
- Keep antennas oriented correctly if you are using a controller with antennas.
- Do not let the phone rest on other electronics that may radiate noise.
- Stay within a conservative range until the connection proves stable.
Urban areas often have dense 2.4 GHz and 5 GHz congestion, which can affect the link used by the Autel Sky app.
A park, field, or other unobstructed location is the best place to test whether the problem is environmental.
Review phone settings that can interrupt the connection
Modern smartphones aggressively manage power and background activity.
Those features can be helpful for battery life but harmful to drone sessions.
- Disable Low Power Mode: iPhone power-saving features can limit performance and background tasks.
- Turn off battery optimization: Android may pause the app when it thinks it is unused.
- Disable auto network switching: Some phones jump between Wi‑Fi and mobile data during weak signals.
- Turn off VPN apps: VPN tunneling can interfere with local device discovery and network handling.
- Allow background activity: Prevent the operating system from suspending the Autel Sky app mid-flight.
Try a different phone if the issue continues
If the Autel Evo Nano keeps disconnecting from phone after updates and settings changes, test with another compatible device.
This helps isolate whether the problem is tied to your phone model, operating system version, or a specific app installation.
Use a second phone with a clean app install and the latest OS update.
If the connection becomes stable, the original phone likely has a compatibility, permission, or system-management issue that needs correction.
Inspect cables, ports, and accessories
Some users rely on cables or accessories during setup, and physical wear can also affect stability.
A damaged cable, loose port, or low-quality adapter may not cause the drone link directly, but it can disrupt charging, updates, or controller functions.
- Inspect USB cables for bent pins or fraying.
- Use manufacturer-recommended or high-quality certified accessories.
- Check the phone port for lint or debris.
- Remove bulky cases that prevent a secure fit.
When the battery or temperature is the real issue
Low battery levels can reduce radio performance and increase instability.
Heat is another factor, especially during long sessions in direct sunlight.
If the drone or phone becomes hot, allow it to cool before testing the link again.
Battery health matters too.
If a battery is aging, swollen, or unable to hold charge well, it may cause unpredictable behavior.
Replace damaged batteries and avoid flying with power levels that are too low for stable operation.
Step-by-step troubleshooting checklist
- Fully charge the drone, controller, and phone.
- Restart all devices.
- Update the Autel Sky app.
- Confirm all app permissions are enabled.
- Update drone and controller firmware.
- Disable VPN, Low Power Mode, and battery optimization.
- Test in an open area with minimal interference.
- Try a different compatible phone.
- Reinstall the app if the problem persists.
When to contact Autel support
If the Autel Evo Nano keeps disconnecting from phone after you have tested software, settings, and environment, the issue may involve hardware or a deeper compatibility fault.
Contact Autel Robotics support with your drone model, controller type, phone model, OS version, app version, and a clear description of when the disconnect occurs.
Provide details such as whether the disconnect happens during startup, while hovering, during video recording, or only at certain distances.
That information helps support determine whether you need a replacement part, firmware rollback guidance, or advanced diagnostics.