NEW New Firmware Update F/W V2.1 is available 2025-07-04
The new firmware increased the upper limit of maximum roll angle to 180 degrees to solve the issue that the airplane cannot reach the expected angle when flying with a small stick travel setting in ANGLE mode.
A3 Mini is a high-performance and functional 6-axis mini gyro and stabilizer designed for R/C airplanes. The smaller size and more compact design make it more suitable for the small electric airplanes. With the new feature of multi-protocol serial receiver support, it could be compatible with most single line mini receivers on the market.
Features
- Mini size and 4.8g weight, PPM and multi-protocol digital serial receivers supported.
- 32-bit MCU, high-precision 6-axis MEMS sensor, improved hardware platform and new firmware solution provide more reliable performance.
- 6 flight modes, including GYRO-OFF, NORMAL, LOCK, ANGLE, LEVEL and HOVER modes.
- Flying-wing (Delta-wing), V-Tail, Remote Master Gain.
- Firmware upgradable and Programming Card supported.
Serial Receiver Protocols Supported
- PPM Receiver
- Futaba SBus (compatible with FrSky SBus, JETI SBus, RadioLink SBus, TBS SBus and WFLY WBus)
- Spektrum DSM2/X 1024 Satellite (Remote) Receiver
- Spektrum DSM2/X 2048 Satellite (Remote) Receiver
- Spektrum SRXL
- Multiplex SRXL / JR XBUS Mode B
- Graupner SUMD
- FlySky iBus
- JETI EXBus ①
- TBS/ELRS CRSF ②
① F/W V1.2 or later required; ② F/W V1.6 or later required.
Receiver Connection
A3 Mini supports PPM and multi-protocol digital serial receivers which allows you to connect the receiver to the gyro with one single wire on the slot [Serial RX]. Depending upon the receiver type selected, A3 Mini uses the preset channel assignment to recognize the channels from the receiver. Refer to the table below and check if your radio transmits the channels in the correct order. After each time you have changed the receiver type the current channel settings will be reset to the default. Choose "None" for those channels you do not use.
Default Channel Assignment
Single-line Receiver
Spektrum DSM2/X remote Receiver
Servo Connection
A3 Mini supports Standard Fixed-wing, Flying-wing (Delta-wing) and V-Tail.
Standard Fixed-wing
Flying-wing (Delta-wing)
V-Tail
USER MANUALS
A3 Mini User Manual SOFTWARE & DRIVER
A3 Configurator V1.2.7 
USB Driver V6.7.6 for Windows XP/7/8/8.1 
Microsoft .NET Framework 4 GUIDES & DOCUMENTS
2024-12-09
2024-12-09
2024-12-09
2024-12-09
2024-12-09
It is recommended to update the gyro to the latest Firmware version. Keeping the version up-to-date might help you to avoid known issues that prevent you to use the gyro properly. The firmware download is not available at the moment, please upgrade online via A3 Configurator.
Firmware Name
Update Time
Changes & Notes
Size
A3 Mini Firmware V2.1 NEW
2025-07-04
Changes
- Increased the upper limit of maximum roll angle to 180 degrees to solve the issue that the airplane cannot reach the expected angle when flying with a small stick travel setting in ANGLE mode.
- Other minor fixes and improvements.
Notes
- Upgrade the programming card X to V1.7 to support new features.
- Upgrade A3 Configurator to V1.2.7 to support new features.
- The settings in the gyro can be used unchanged after updating, but to be safe, backup the settings before updating.
38.7KB
A3 Mini Firmware V2.0
2025-03-28
Changes
- Fixed the issue that the stick input becomes too small especially using a small end-point setting when flying in LEVEL/HOVER mode.
Notes
- A3 Configurator and the Programming Card can continue to be used without any update.
- The settings in the gyro can be used unchanged after updating, but to be safe, backup the settings before updating.
38.5KB
A3 Mini Firmware V1.9
2024-12-16
Changes
- Algorithm improved for Angle Mode.
Notes
- A3 Configurator and the Programming Card can continue to be used without any update.
- The settings in the gyro can be used unchanged after updating, but to be safe, backup the settings before updating.
38.1KB
A3 Mini Firmware V1.8
2024-03-16
Changes
- Fix the compatibility issue of connecting to a FlySky's SBus receiver.
Notes
- A3 Configurator and the Programming Card can continue to be used without any update.
- The settings in the gyro can be used unchanged after updating, but to be safe, backup the settings before updating.
38.1KB
A3 Mini Firmware V1.7
2023-11-02
Changes
- Algorithm improved for dynamic gain control, which will provide you a better experience in ANGLE or LEVEL flight mode.
Notes
- A3 Configurator and the Programming Card can continue to be used without any update.
- The settings in the gyro can be used unchanged after updating, but to be safe, backup the settings before updating.
38.0KB
A3 Mini Firmware V1.6
2023-06-13
Changes
- TBS/ELRS CRSF serial protocol support added.
Notes
- Upgrade the programming card X to V1.6 to support CRSF.
- Upgrade A3 Configurator to V1.2.3 to support CRSF.
- The settings in the gyro can be used unchanged after updating, but to be safe, backup the settings before updating.
38.1KB
A3 Mini Firmware V1.5
2023-01-19
Changes
- Servo smoothing processing added for ANGLE mode.
- PPM capture algorithm improved to enhance the anti-interference capability.
- Other minor fixes and improvements.
Notes
- The new version includes several important improvements and is recommended for all users.
- Please upgrade the Programming Card X to the newest version V1.5.
- The settings in the gyro can be used unchanged after updating, but to be safe, backup the settings before updating.
38.3KB
A3 Mini Firmware V1.3
2022-07-30
Changes
- FlySky PL18 AFHDS3 iBus serial protocol support added.
- Other minor fixes and improvements.
Notes
- The program card and A3 Configurator do not need to be upgraded.
- The settings in the gyro can be used unchanged after updating, but to be safe, backup the settings before updating.
48.3KB
A3 Mini Firmware V1.2
2022-04-18
Changes
- JETI Duplex EXBus support added.
- Improvements on PPM capture.
- Other minor fixes and improvements.
Notes
- Upgrade the programming card to V1.3 to support JETI EXBus.
- Upgrade A3 Configurator to V1.2.1 to support JETI EXBus.
- The settings in the gyro can be used unchanged after updating, but to be safe, back up the settings before updating.
48.3KB
A3 Mini Firmware V1.1
2022-01-14
Fixed the bug of Spektrum DSM2 satellite binding.
47.6KB
A3 Mini Firmware V1.0
2021-12-07
A3 Mini Initial Version
47.6KB
Release notes for the latest "X" hardware
Firmware Name
Update Time
Changes & Notes
Size
Program Card X Firmware V1.7 NEW
2025-07-06
- Dual Delta wing type added for A3S4.
- Increased the upper limit of maximum roll angle to 180 degrees of ANGLE mode for A3S4 and A3 Mini.
32.6KB
Program Card X Firmware V1.6
2023-06-13
- TBS/ELRS CRSF option added.
- Minor optimizations.
32.3KB
Program Card X Firmware V1.5
2022-09-28
- User Defined Mode option added for A3S4.
- Applicable to all versions of A3S4.
- Other minor fixes and improvements.
32.0KB
Program Card X Firmware V1.3
2022-04-17
- JETI EXBus option added to the receiver list of A3S4 and A3 Mini.
- Other minor fixes and improvements.
35.0KB
Program Card X Firmware V1.2
2022-03-27
- A3 Super 4 support added, compatible with A3 Mini and A3 Super 3 (F/W V2.x).
- Channel mappings reset and gyro restart confirmation added after changing the receiver type.
- "DSM Binding Option" added in the receiver menu of A3 Mini.
- Other minor fixes and improvements.
34.6KB
Program Card X Firmware V1.1
2021-12-07
- A3 Mini support added.
- Compatible with A3 Super 3 (F/W V2.x).
30.3KB
Program Card X Firmware V1.0
2021-06-12
Program Card X Initial Version.
27.7KB
Release notes for the older hardware
Firmware Name
Update Time
Changes & Notes
Size
Program Card Firmware V5.2 NEW
2023-06-21
Changes
- TBS/ELRS CRSF option added.
Notes
- This version is for A3 Super 4 only.
- Due to the voltage limitation of the old program card, always limit the working voltage of the gyro below 5.5V when using for A3 Super 4, or it may cause connection to fail or even damage of the card!
30.6KB
Program Card Firmware V5.1
2022-09-25
Changes
- User defined flight mode added.
- Other minor fixes and improvements.
Notes
- This version is for A3 Super 4 only.
- Due to the voltage limitation of the old program card, always limit the working voltage of the gyro below 5.5V when using for A3 Super 4, or it may cause connection to fail or even damage of the card!
30.6KB
Program Card Firmware V5.0
2022-04-30
Changes
- A3 Super 4 support added.
- Channel mappings reset and gyro restart confirmation added after changing the receiver type.
- Other minor fixes and improvements.
Notes
- Due to the capacity limitation of the old program card, this version has been divided into 3 update packages in which each firmware supports only 2 devices, please choose according to your needs.
- Due to the voltage limitation of the old program card, always limit the working voltage of the gyro below 5.5V when using for A3 Mini or A3 Super 4, or it may cause connection to fail or even damage of the card!
30.1KB
Program Card Firmware V4.1
2021-12-21
- A3 Mini support added.
- Compatible with A3 Super 3 (F/W V2.x).
27.2KB
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