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DJI Mini 3 Rear Arm Replacement

The DJI Mini 3 is a lightweight, highly capable...

DJI DJI Mini 3 Moderate 40 minutes - 2 hours Guide 200473
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This attributed iFixit guide is displayed through Fixonic's recorded commercial API permission. iFixit remains the independent source and author of the procedure.

Guide overview

Before you begin

The DJI Mini 3 is a lightweight, highly capable drone, but like any compact quadcopter, its arms are vulnerable to damage from crashes or wear over time. A cracked or loose arm can cause unstable flight or prevent the drone from taking off altogether. Fortunately, replacing a damaged arm is a straightforward repair that does not require replacing the entire aircraft. This Fast Fix guide will walk you step-by-step through removing a damaged rear arm and installing a new one. The process involves opening the drone’s shell, disconnecting the arm’s wiring, and securely mounting the replacement component. With patience and a little finesse, you can get your Mini 3 back in the air in around an hour.

Step 1

Repair step

  • Use an opening tool to unclip the top shell from the device.
Step 2

Repair step

  • Unscrew the highlighted T5 Torx screw and disconnect the associated cable.
Step 3

Repair step

  • Remove the bottom shell, prying at it as we did before.
Step 4

Repair step

  • Unscrew the circled screws and remove the camera.
Step 5

Repair step

  • Follow the wires of the broken arm to the electronic speed controller as shown. There should be a red, white, and black wire. Desolder these wires from the pad and remove the wires from the drone body.
Step 6

Repair step

  • Gently pull the wires free from the drone arm and remove the motor. Route the wires through the new arm to complete the replacement of the broken arm.