Please confirm the version of Air65 II before flashing the firmware
(Matrix 1S 5IN1 II FC)
Basic firmware : BETAFLIGHT 2026.6.0
VTX default frequency point :R1 5658MHz（Air65）
Please carefully identify the gyroscope model and download the corresponding firmware for flashing. You can check this by observing the gyroscope chip model in the flight controller hardware or by connecting to the Betaflight ground station, as follows:
How to check the flight controller gyroscope model?
• Betaflight has not yet released official firmware compatible with this gyroscope, so please do not flash the official Betaflight firmware and pay attention to future support information.
• FC uses a customized version of the Betaflight developer firmware. When adjusting parameters, please use the development configurator: https://master.app.betaflight.com/
20260515 (Only applicable to BMI270)
Change: Optimized for BMI270 gyroscope
No need to flash configuration firmware (including CLI configuration):
A65 II R_0702_Racing_GF 1207_2026_6_0 20260520.hex
A65 II F_0702_Freestyle_GF 1219S_2026_6_0 20260515.hex
A65 II C_0702_Champion_GF 1207_2026_6_0 20260515.hex
CLI for quadcopter (Do not need to be flashed separately):
A65 II R_0702_Racing_GF 1207_2026_6_0 20260520.txt
A65 II F_0702_Freestyle_GF 1219S_2026_6_0 20260515.txt
A65 II C_0702_Champion_GF 1207_2026_6_0 20260515.txt
20260421 (Applicable to ICM42688 & ICM42622 & LSM6DSV16X)
Change: Optimized gyro filtering for LSM6DSV16X.
• If OSD information is missing or not displayed, please enter the
following command into the CLI:
set osd_displayport_device = MAX7456
set vcd_video_system = NTSC
save
No need to flash configuration firmware (including CLI configuration):
A65 II R_0702_Racing_GF 1207_2026_6_0 20260421.hex
A65 II F_0702_Freestyle_GF 1219S_2026_6_0 20260421.hex
A65 II C_0702_Champion_GF 1207_2026_6_0 20260421.hex
CLI for quadcopter (Do not need to be flashed separately):
A65 II R_0702_Racing_GF 1207_2026_6_0 20260421.txt
A65 II F_0702_Freestyle_GF 1219S_2026_6_0 20260421.txt
A65 II C_0702_Champion_GF 1207_2026_6_0 20260421.txt
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