"I personnaly use the first version of  the SJ4000 in a T2D gimbal, it fit well, it's a little be more stretch than with the Gopro . The bad thing is to remove the SD card or connect the USB you need to remove the cam . Personnaly I don't use anymore…"

"SJ4000 and other "clone" does the job for the money, be sure of that, there no added value that justifies the price difference

Compare yourself : Youtube SJ4000 vs Gopro"

"Ok, after more investigation, my brand new landing gear controler is simply death...

Thanks you for your help, really ."

"Hey thanks for your reply .
Can I test to retract without arming for testing purpose ? Cause I have all connected and configured my ch8 but nothing happened on the ground. I haven't flyed with this new frame yet"

"Can anyone confirm to me than the new Landing gear retract function works ?
I have a new frame with retractable landing gear, have followed the wiki page about this function but can't get it to wrok.
I haven't flyed yet but I try this function on…"

"Unfortunately Leonard, my esc can't handle 6s power
Anyway, I've updated to 3.3RC5 and changed parameter as provided, I will give you a feedback when I can do a new fly, it's very windy at this moment here.
Just for the story, this frame is a piece…"

"Hello Leonard, and thanks for your quick analysis !

For the first problem I think is that should not use 10000mAh beacause is to heavy
Here are my setup :
2680g (2880g with 10000mAh)
Rctimer 5010 360Kv
Prop 16x5.5 carbon
Skywalker Quattro (4x 25A…"

"Finally Sascha, did you fond anyexplanation for this behavior?
I am having the same problem and try to found what's go wrong.
Please feel free if you have found any solution
THanks for your help"

"Ok Johannes, today I did my maiden flight with my fresh build slow fly quadcopter ( 15' carbon props and 360Kv motor )
I've enabled EKF function with the parameter "AHRS_EKF_USE = 1" and tried to do an Autotune but got an
"AUTOTUNE ERROR: Bad Gains…"

"Have exactly the same question ?"