How would you know that your IMU is busted? We sometimes have a wrong readings for the attitude of the helicopter. Do we have a software to test if the IMU has a problem?
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How would you know that your IMU is busted? We sometimes have a wrong readings for the attitude of the helicopter. Do we have a software to test if the IMU has a problem?
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Are you using the resistor dividers for battery monitor ? If you are and you plug in your battery cable to the resistor divider before you power up your heli that could give you the same response you are having. If I plug in my battery monitor to the apm where the 4 resistors go i have a very slow attitude response. Everything else works normal (mag, baro, accels, sonar) but gyros and in mission planner the result is very sloooowwww response to pitch and roll.
I have to plug in main power first then I plug in battery monitor cable and everything works fine.
You can always try reflowing the solder joints on the chips with a hot air rework station.
There's a full suite of test modes in the CLI. It's all in the manual.
Vibrations maybe?