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Actually, your mistake was buying a DJI product. Period.

So, problems solved. 1. The retracts Control Board was swapped for a new one and voila, the retracts work properly. Remember that this is a brand new unused S800 EVO kit and it came with faulty retracts ... my third experience of faulty DJI retracts BTW. 2. The A2 MC (Main Control - or Flight...

If the rear horizontal tube has taken enough of a whack to move it, it will show up as a loss of Roll balance and the whole Roll/Tilt tray will appear top-heavy and want to fall to either side. The original Z15 would rotate all the way upside down. If the Roll axis balance is still okay then the...

If you are talking to me, loading the latest DJI firmware is certainly no guarantee that everything will work nicely. Like 5.22 for the WKM where the engineer 'forgot' to activate Return To Home. Why do you think v5.16 is so popular with the WKM? But, as it happens, the latest v2.1 firmware is...

I use a GH3 on both a modified Z15-GH2 (conversion kit available from Secraft is good to modifiy both Z15-GH2 and Z15-Nex) and a Z15-GH3. The modified Z15-GH2 is currently doing all the work. I will say though that a successful mod is pretty finicky, as quite a lot of things have to be shifted...

Personally I would consider getting the original Z15 and modify it for GH3 use - if that is the camera you wish to use. The new Z15-GH3 is very clunky in operation by comparison. My original Z15 has had some serious abuse, courtesy of a delinquent S800 to which I cannot wait to apply a 15kg...

It is a bog standard S800 EVO with A2. All new. As I also mentioned, on the face of it the finger of blame seems to point to the Flight Control, since those same booms behaved normally on a standard S800. A replacement FC will be here this very afternoon and that EVO piece of crap .... sorry...

I wasn't going to say anything, hoping that Ed would realise his error but he plainly has not. He is still getting his P's and I's mixed up and is now confusing the issue further by bringing in the MC. The IMU (Inertial Measurement/Movement (?) Unit) has two holes for the barometric altimeter...

Does this look at all like your issue? This is a brand new S800 EVO with an A2 FC. I did not attempt to fly it with these 'motor spasms'. The same booms were then moved to a standard S800 and it flew normally. So the A2 seems to be the likely (only?) suspect. I will replace the A2 with a new...

Well I am awaiting a replacement A2. Do not know yet whether the first A2 is responsible for the motor spasms or not. So I'll swap it for another and see. Dunno why I always get supplied with lemons.

The IMU has always been slightly off-centre with the S800's, and even further away from the CoG if the damping tray is used. However, there is a facility in the setup software where precise distances of IMU and GPS sensor from CoG are entered to accommodate this offset. Their recommendation is...

Now don't go assuming that just because I am responding that I am classifying myself as an 'expert' but ... I have to agree with you Dave. That is one BORING video!:highly_amused: Except for the shot of you with rosy cheeks, crouching down freezing your nuts off and operating two transmitters...

Good build review with good, in-focus detail photos. Maybe you should head over to Bart's new Product Review Thread! Perhaps DJI have finally come of age with this airframe. I do like the increased access to the important bits whilst still maintaining their reasonably tidy installation ethos...

Ooo-err ... steady on Ed. You don't want to get too complimentary about me and risk endangering your new position. I suspect my name is about as popular as a pig in a mosque within the DJI echelons! I am one of those filthy Western infidels with unsightly body hair who calls a spade a spade...

It is invariably fairly entertaining reading posts from Aye-Yup Dave coz his speling is so atroxius, but his advice in this case is spot on. What's more it is not idle theory. It is based upon practical experience. Similarly, and based upon my own experience, I would say err towards compact and...

If you ask me the balance has been knocked out by the crash. You may find that the whole Roll/Tilt section has rotated vertically around the rear horizontal tube. A Z15-GH2 will calibrate with no camera, a Z15-GH3 will not. It has to have the camera in place - and obviously balanced.

No extras. Just the A2 on an EVO with a LiPo at the front for balance. Was only supposed to be a routine first verification flight. I won't waste time guessing yet. I'll wait for the replacement A2. On the subject of the iOSD, I am wondering how one is supposed to glean useful fault-finding...

Only one reason. It's nice an' shiny - and it has a built in Rx. OK, two reasons. The hula-hoop training skid was made up to reduce breakage whilst testing a sick S800 that was behaving very badly. Now it gets strapped onto every new airframe for initial flights. I'm in Kenya and cannot afford...

I would rather like to know that myself.

Can't say I am that impressed with my brand new A2 on a brand new S800 EVO that came supplied with faulty retracts that only lift one leg. The video shows why it never left the ground for its first test flight.