Mini 4 Pro Vision Sensor Module Replacement Guide

11 de agosto de 2026

Mini 4 Pro Vision Sensor Module Replacement Guide

The Mini 4 Pro features a comprehensive vision system including forward, backward, upward, and downward obstacle sensing. These sensors enable APAS (Advanced Pilot Assistance System) obstacle avoidance and precise hovering. When a sensor module fails, the drone disables obstacle avoidance and may struggle to hover accurately indoors.

Symptoms of a Failed Vision Sensor

"Obstacle avoidance unavailable" warning
Specific direction sensor error in the app
Drone drifts indoors or cannot hold position without GPS
Downward sensor error causing unstable low-altitude hover
Vision positioning system disabled

Two Key Sensor Modules for Mini 4 Pro

The Mini 4 Pro has two main vision sensor assemblies:

Downward Vision Sensor — handles ground detection and low-altitude hover stability. Replace with SKU SKU00106.
Front & Rear Vision Sensor (7-in-1 Butterfly Flex Cable) — handles forward, backward, and upward obstacle sensing. Replace with SKU SKU108.

Tools You'll Need

Phillips screwdriver (PH000)
Plastic pry tool
Tweezers
Replacement sensor module (SKU00106 or SKU108 depending on the failed sensor)
Clean, well-lit workspace

Downward Vision Sensor Replacement (SKU00106)

Step 1 — Power off and remove the battery.

Step 2 — Remove the bottom shell. Unscrew the underside screws and carefully separate the bottom shell. The downward vision sensor is mounted on the underside of the drone body.

Step 3 — Disconnect the sensor flex cable. Lift the ZIF connector tab and slide the cable out.

Step 4 — Remove the sensor module. Unscrew the 2 mounting screws and lift the sensor out.

Step 5 — Install the new sensor. Seat the new module, secure with screws, and reconnect the flex cable.

Step 6 — Reassemble and test. Reattach the shell, power on, and verify the downward sensor is active in the app.

Front & Rear Vision Sensor Replacement (SKU108)

Step 1 — Power off and remove the battery.

Step 2 — Remove the front and top shell. The 7-in-1 butterfly flex cable connects multiple sensors across the drone body. Full shell removal is required.

Step 3 — Trace the butterfly cable. The cable branches to the front sensors, rear sensors, and upward sensors. Disconnect all ZIF connectors carefully.

Step 4 — Remove the old cable assembly. Lift the cable out of its routing channels. Note the exact path for reinstallation.

Step 5 — Install the new cable assembly. Route the new cable along the same path. Connect all ZIF connectors and lock the tabs.

Step 6 — Reassemble and test. Reattach all shells, power on, and verify all obstacle avoidance directions are active in the app.

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Mini 4 Pro Vision Sensor Module Replacement Guide