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Hi Mika Im afraid I dont have this info, All I know is I bought mine a month or so ago. I imagine that Geoff will look into this further now he has my IMU and PMU. If you need me to back you up with your dealer with my experience then just PM me. Ben

• Mikrokopter FC v2.1 MK • Heavy lift octo Distroboard • 8x BL-ctrl 2.0 • Usb Programmer included • Assembled and ready to use Never used. Free postage. £570 (saving of £260)

An update... After replacing both the IMU and the PMU, the RTH problem is now solved. Same firmware, same mcu, same hardware setup, just a straight switch of those components and all is as it should be, no more crazy bucking on RTH. So, for all those that have the same problem, (I have been...

Yeah the yaw issue just went without any action or warning, and I only get it now in manual mode but I suspect that is normal. Obviously something did change, but I'm not aware of what it was (sorry, bad engineering). I re calibrated the compass endless times as best i could failing standing...

That issue was old and resolved itself after a few flights. Not related to the RTH wobble.

Yep I agree with you, I dont see how this is going to help, I think DJI just want to try it to rule some things out. But I have reset all params and even reset the eeprom by tieing the ports together, no difference. That's great re the replacement unit, I will package up the WKM and send it...

DJI are saying I should try importing a config from a working unit. Can anyone here who has a stock f550 export their settings for me. Would really appreciate it thanks ben

Have just sent the following to support@dji, hoping they can shed some light. ----------------------------------------------------- Dear DJI When enabling either fail safe or fly home mode, the craft goes nuts! It pitches and rolls violently back and forth while flying up and returning to...

Arghhh damn this is getting frustrating. Just when I think there is a solution with 5.20... http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&eotf=1&u=http%3A%2F%2Fwww.mk-fr.info%2Fforum%2Findex.php%3Ftopic%3D11585.30&act=url Tried today and still have the same...

Did not fix my oscillation on RTH :( gutted

Any ideas if this will fix the oscilations on RTH mode? This thread seems to indicate it might, but hard to be sure with translation. http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&eotf=1&u=http%3A%2F%2Fwww.mk-fr.info%2Fforum%2Findex.php%3Ftopic%3D11585.30&act=url

Perfectly, holds position amazingly, even in quite extreme wind.

Update.... just tried firmware 5.18. Exactly the same problem :( Flies fine in all modes and then jolts about like a drunk in RTH

Yes sure, I didn't mean today, I emailed him about it last week. Hopefully he's on the case with the other issues and will pick this up too.

Ok, thanks, let me know how you get on. I wont be able to test new firmware until Wednesday. Out of interest, when did you buy your WKM?

Sorry, not sure i follow you...?

I have emailed Geoff at quadcopters.co.uk, but no reply yet. I think he must think I'm the customer from hell as I already had to send iOSD and datalink receiver back for being suspected faulty. I'm, hoping he might pick up on this thread and talk to DJI. What's even more frustrating is i had...

Sorry no solution yet, was going to contact the dealer I bought it from. It's really odd though, it feels like it should be a software issue, not a hardware one. I wonder how common this is?

Interesting, this is the reply from the guy with the same problem.... "DJI replaced it for me and the new one works fine now. I couldnt figure it out and DJI were also dumb found!" So am i best to go through quadcopters.co.uk or DJI direct?

Cheers Aviator. And yes don't worry if it turns out to be something dumb, I will come clean :)