Not Taking Off
Ryze Tello Drone
Severity: ModerateWhat Does This Error Mean?
The Tello won't take off if it has low battery, is not connected to the app, has an IMU error, or detects a propeller problem. Check the Tello app for any warning messages before attempting takeoff.
Affected Models
- Ryze Tello
- Ryze Tello EDU
- DJI Tello (same hardware)
Common Causes
- Battery below 10% — Tello locks out takeoff at low battery
- Not connected to phone via Wi-Fi
- IMU not calibrated (especially after shipping)
- Propeller not seated properly
- High temperature warning blocking takeoff
- App not up to date
How to Fix It
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Charge the Tello fully before first use.
The Tello comes partially charged. Charge to 100% using the Micro-USB port (Tello) or via the charging hub. The LED flashes while charging and turns solid when full.
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Connect your phone to the Tello's Wi-Fi.
The Tello creates its own Wi-Fi network (TELLO-XXXXXX). Go to your phone's Wi-Fi settings, connect to that network, then open the Tello app.
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Check for an IMU calibration prompt in the app.
New Tello drones often need IMU calibration out of the box. The app will prompt you — follow the on-screen instructions.
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Check that the propellers are properly installed.
The Tello has two clockwise (black dot) and two counter-clockwise (no dot) propellers. Each must click firmly onto its motor shaft. A loose prop will prevent takeoff.
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Place on a flat, level surface and restart.
Power off the Tello, place it on a flat surface, and power on again. The IMU reads the level reference at startup.
Frequently Asked Questions
My Tello's propellers spin but it won't lift — why?
If the props spin at low speed but the Tello doesn't lift, it may be in a throttle-locked state. In the Tello app, try pressing the emergency stop button and then re-arming. Also check that all 4 propellers are installed — the Tello will attempt to spin with 3 props but won't generate enough lift.