How to fix jello and vibration in DJI Mini 3 footage

Jello in DJI Mini 3 footage, the wobbly, wavy look in the picture, is vibration reaching the camera. The usual causes are a chipped or loose propeller, strong wind, or filming in Sport mode. Check and replace the props first, then film in Normal or Cine mode on calmer days. Jello that appears right after a crash points to gimbal damage.

Where's the Mini 3 jello from? — Jello in DJI Mini 3 footage has a handful of common causes. When it appears tells you which one to fix first.

Why the Mini 3 gets jello

The camera reads each frame line by line. When the camera shakes faster than the gimbal can cancel, straight lines bend and ripple. The gimbal handles slow movement well. It can't fully remove a high-frequency buzz from an unbalanced prop or motors working hard in gusts.

At 248 g the Mini 3 feels wind more than heavier drones. DJI rates its wind resistance at 10.7 m/s (Level 5) and says slight vibration is expected in strong wind because the drone is so light.

Fixes, from easiest to most involved

Inspect every propeller. Look for nicks, cracks and bent tips. DJI's FAQ says to check for cracks, wear, warping, corrosion and loose screws before each flight, and to replace props that show any of them.
Check the screws. The Mini 3's props are screwed on. Use the screwdriver from the box and make sure each screw is snug.
Replace correctly. Swap damaged props with their screws, and put marked props on marked motors and unmarked on unmarked, as DJI instructs. See Mini 3 propellers.
Clean the props. Dirt on a blade throws off its balance. Wipe with a dry cloth.
Avoid Sport mode for filming. DJI's manual notes minor tremor in videos recorded in Sport mode.
Watch sideways flight in wind. DJI limits speed and attitude when the Mini 3 flies left or right to keep shots stable, but in strong wind it lifts those limits to hold position, and the gimbal may vibrate. Fly lower, where wind is usually lighter, or pick a calmer time.
Remove add-ons. A propeller guard or anything clipped to the body changes how the drone vibrates.
Calibrate. If footage also tilts or drifts, run gimbal calibration and calibrate the IMU. See Mini 3 horizon not level.

Camera settings that hide it

Jello shows more at very fast shutter speeds, because each frame freezes the vibration. A shutter near double your frame rate (1/50 or 1/60 s at 25 or 30 fps) adds natural motion blur that masks small vibrations. In daylight that takes an ND filter. This won't fix a bad prop, but it helps on breezy days.

When it's the gimbal

If jello stays after new props in calm air, or started after a crash, the gimbal's dampers or a motor may be damaged. Look for a camera that hangs crooked or buzzes. That's a repair, covered by DJI Care Refresh for crash damage.

For the same problem on other drones, read wavy jello drone footage. If wind is the real issue, a newer Mini handles it better: compare the Mini 3 and Mini 4 Pro.