Phantom 2 will not calibrate compass vertically

[LittleLebowski]

Hello, I’m having issues calibrating my P2’s compass in the vertical plane. I have tried to do so outside, with no ferrous objects around to no avail. Flashing the latest firmware did not help. It usually flashes 1 green and 3 red. I would appreciate any help offered.

 

[LittleLebowski]

I believe that I got a successfully compass calibration to no avail. The left rear rotor is not spinning at the same rate as the others. The machine will take off, lose altitude despite my efforts and crash. I am very frustrated. This has been a painful experience from the get go, aren't these things are supposed to be easy?

 

[Nightwolf]

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