Accelerometer calibration issue

So, I almost set up the drone, only accelerometer calibration left. When i try to start the calibration and click the “calibrate accel” button, it turns to “click when done” and when i click it, mission planner doesn’t react, then, after 20-30 seconds it says calibration failed, my mission planner version: 3.2.1

The latest version of Mission Planner is 1.3.80.

If you are using Arducopter 3.2.1 then that is significantly out of date and you should update to the latest version.

That usually means an APM Flight Controller as it’s the last version that supported those antiques. And if that’s true this post belongs in the Unsupported thread…

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ok, I’m trying to update Arducopter, but now it says “failed to detect port to upload on (unknown VID/PID or board string) Please try disconnect/reconnect and upload while on this screen”

What Flight Controller do you have?

I have Ardupilot APM 2.8

Moved to Unupported Hardware. Those haven’t been supported by Ardupilot in many years. Replace it with one that is. There are many.

Can you suggest me a few options? Because I don’t know where I can find them

thanks, I’ve bought the pixhawk 2.4.8 and everything worked