Hi,
I have buy UM7 sensor in 2019, but have not used it much, when i want to use it in 2020, it cannot detect the firmware, and i could not found U72B firmware file, the only available are U71B,U71C,U71D
so i downgrade the firmware to U71C
But the drifting problems in yaw is troublesome
Could someone help me find U72B firmware or how to calibrate in U71C
i have followed these instruction https://redshiftlabs.com.au/support-services/um7-calibration-procedure/
but the drifting problem persist
Thanks