what’s wrong with what is in the video?
I use Pixhawk 2.4.8 and setup, and connect the hardware as usual, insert the firmware, calibrate the acc, compass, radio etc. and run as usual … but when I want to float, what happens instead is like in the video …
Please explain … your explanation is very helpful …
Thanks. 
Uploading: VID_20200302_073344.zip…
Good day,the video cannot be watch, what kinf of issue you need solve?
Uploading: Aa.zip…
The problem is very confusing … All looks good at the setup in the mission planner, no preArm warning. But when it makes wishing, while throty is noted a bit, Quad is directly reversed before hovering …
Here Esc has calculated, round and dialing is also fit … Thank you before …
Video don’t work and cannot be downloaded…
what is the behavior of your copter during take off and navigation?
When the copter take off, copter was instantly upside down.
Rough what’s wrong in the setting.?
Can I send you videos via email.?
The motor order is wrong. Please correct it. ABCD is not 1234 !!!
Thank you … i have found a solution about that …
And now a new problem comes when hover and then enter altHold mode, the quadcopter will go down as it will land… 
What needs to be set so that the quad can withstand altitude?
Thank you…
just send me pls the video on my telegram… D98756, i will check what’s going on