DJI A3 firmware `v1.7.1.5`

DJI · Released Jun 15, 2017 · First seen Jul 10, 2026

v1.7.1.5 is not the latest firmware for the DJI A3: the current version is v1.7.7.0 (January 9, 2019). Go to v1.7.7.0

In short — summary by updatemystuff.com

This release adds ground collision detection, improves RTH behavior with GPS signal handling, enhances flight stability, and significantly…

Ground collision detection stops motors upon impact
RTH exits if GPS is weak and re-enters when signal recovers
SDK v3.3 adds multi-functional channel outputs/inputs and 400Hz data push options

Written from DJI's release notes, which are printed in full below.

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A3-equipped aircraft will now exit Return to Home (RTH) if GPS signal is weak and re-enter RTH if GPS signal is regained.
Added ground collision detection. The aircraft will stop the motors if a collision is detected.
Control sensitivity will now reduce automatically if the aircraft is not maintaining altitude stably.
Added a function that detects whether or not D-RTK is installed correctly.
Enhanced compass interference prevention while hovering.
Updated no-fly zones.
Optimized no-fly zone whitelisting.
Optimized distance limitations, which are disabled by default and can be enabled in Assistant 2.
Optimized motor acceleration and deceleration when pulling down the throttle stick to land.
Optimized accelerometer driver performance.
Fixed an issue where the aircraft could automatically takeoff and land when idling on the ground.

Onboard SDK (v3.3 is required):

Added multi-functional channel outputs and inputs.
Added several options that allow more data to be pushed, including a high-frequency (400Hz) push setting.
Users can now subscribe data.
Enhanced interface sampling synchronization for external sensors.
Updated takeoff, landing, and RTH interfaces.
Added angular rate control.
Optimized logic for regaining control.
Added multi-channel hardware synchronization support (with the latest version of DJI Assistant 2).

DJI A3 Release Notes http://www.dji.com/a3

When using the D-RTK, be sure to upgrade to this firmware version.
Ensure that the Lightbridge 2 Air System and Ground System are on the latest firmware version.
Use the latest version of DJI Assistant 2 to configure the flight controller.
Flight controller settings will be reset after firmware upgrade. Remember to reconfigure the settings.
When using the A3 Pro, be sure to upgrade all modules, i.e. the IMU Pro, flight controller, etc.
Upgrade your iOSD MARK II firmware before use.

DJI A3 Release Notes http://www.dji.com/a3

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