F550/Naza/GPS in flight hickup

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David Lee

Member
When flying my F550, Naza, GPS in Atti mode it will hickup, that is, it will drop to the right for just a split second then recover. This has been occurring every flight for the last 20 or so flights and I've made sure it's not a finger twitch. The motors are warm, not hot. Battery warm, not hot. About 75 - 100 flights total on this F550.

The NAZA firmware is about one year old (I don't know which version as I don't have my PC with me, Mac only this week.) I'm using a Spektrum AR8000 RX, a JR11X 2.4ghz TX, Tarot GoPro Hero 3 gimbal, Range Video 1.3 ghz video TX. Gens Ace 5300mah 30C 3S Deans connector. 1300 mah running the Tarot and video TX. New, balanced DJI 10X4.5 props. DJI 2212/920kv motors and DJI 30A ESCs.

Will the Naza firmware upgrade correct this? Or do you think it could be some other issue?

Thanks in advance! I've learned a lot from all the good info on this forum.

Best regards,
Dave
 



photobobga

photobobga

Member
I'm having a similar problem except that after the twitch ( mine will twitch twice very fast) accrues the flight controls on the right side of the transmitter rotate 90 degrees. Makes it a difficult to land. I'm going to swap the Tx and Rx with another unit and test.
 

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David Lee

Member
I went through and checked all the bullet connectors, one on the right side was out about 3/16 inch. Two on the left were out about the same distance. I flew for 8 minutes on a 5300 mah battery and all was well..... until the second flight, about 4 minutes into the flight, glitch to the right, right into the lawn. No major damage but I will now swap out esc's on the right side with those on the left to see if it's a esc issue. If no issues, then I'll switch motors from right to left side. As I'm on vacation with my wife, I may have to wait till next week to do this.

I'll keep you all posted. And, thanks for the prompt and helpful suggestions and PM's!!

Best,
Dave
 

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Dewster

Member
I had the same issue once. It was from a loose bullet connector on the ESC. Plugging and unplugging the wires reduces the friction that keeps it in place. My craft would dip and then recover. Some have soldered their bullet connectors on. I just used engine electrical tape to ensure that the connectors did not rotate or come loose.
 

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