P3 IMU Calibration - How Long Does It Take?

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I'm in the middle of doing one now, and started about 25 minutes ago. I see the red "cpu" light still flashing in front, and believe it is still in progress.
How long should I reasonably expect this to take?
I also don't see a status bar in my iPad Air2 based Pilot App ....
Thanks for any help!
 
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should be no more than 10 or so minutes...
 

BMc

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Mine only took a few minutes. I highly recommend the 'cold IMU calibration' method. You basically get the bird a cool as you can (I placed mine on an AC vent for 30 minutes), get the controller/app up and going, slap the battery in and immediately calibrate the IMU on a dead flat surface. There is also a progress bar that is displayed int he app while it is calibrating that displayed the % completed and then 'complete' when it is done.
 
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Mine only took a few minutes. I highly recommend the 'cold IMU calibration' method. You basically get the bird a cool as you can (I placed mine on an AC vent for 30 minutes), get the controller/app up and going, slap the battery in and immediately calibrate the IMU on a dead flat surface. There is also a progress bar that is displayed int he app while it is calibrating that displayed the % completed and then 'complete' when it is done.
I've also been using the cold calibration method.

I did one last night after updating firmware. It only takes about five minutes if the bird and battery are nice and cool!
 

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