Starling 2 - VOXL2 IMU Clock Line Failure after Heatsink Maintenance
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Hello everyone,
We are running a Starling 2 (SDK 1.8.06) for a commercial pilot deployment. After performing a careful sensor maintenance and mounting the official heatsink back on the VOXL2 (M0054), PX4 is completely blocked and unable to pass pre-flight checks.The voxl-health-check reports sensor_accel and sensor_gyro as 0, 0, 0 (result: False). Checking journalctl -u voxl-imu-server, we are getting the exact hardware fault described in your official forums:
trying ICM42688 on bus 3 ERROR in test_basic_read, read the same values twice WARNING initializing 42688, clock line may be disconnected, trying to turn it off 42688 IMU works without clock line, this indicates PCB damage
We have already tried loosening the heatsink screws carefully to release any potential mechanical PCB stress, performing cold boots, and restarting the services, but the error persists. The clock line buffer seems permanently damaged, rendering the autopilot blind.
What can we do?
Thank you for your swift support,