I tried again this morning, and this is really weird !
1 - I switched on my Tx (Taranis Q X7) (My RC was calibrated with APM Planner)
2 - I connected my Lipo Battery to the Drone
3 - I got Beep from ESC (420 lite DJI) as I told you, then I disconnected it. (I calibrated ESC one by one through directly the Rx (X8R Frsky))
4 - I connected microUSB to the computer to power the drone.
5 - I waited 5 mn, then I connect the Lipo Battery, then I disconnected the microUSB. I got a little melody of sounds like I was expecting at step 2
6 - I armed the drone (I also see the status on APM Planner)
7 - I put the throttle stick from down position to 25%, then 2312E DJI motors worked, and replied to all command (pitch, roll, yaw)
8 - I put throttle stick to 0%, and motors stopped
9 - When I put the throttle stick to 15% (around), just the Motor 1 and 4 worked
10 - if I increase the throttle stick up to 15%, the Motor 2 and 3 worked, Motor 1 and 4 were still working.
I admit it was a little random, because I tried several time, then just the motor didn't work at the same level of throttle stick.
My 1st question is : Why I have no more beep when I change to microUSB to Lipo Battery (but I don't disconnect MicroUSB before) instead when I connect directly the Lipo Battery in first ?
My 2nd question is : If ESC is not compatible, why does it work (not properly like I would like but ...) ?
Do yo really think and guarantee me it will work without problem if I buy yourproduct below ?
Thank you very much !