Hi,

Just started making a whoop with brand new JHEMCU 411 Pro AIO controller and 4 rcinpower motors. After hooking everything together all bound properly and was receiving signal, but started to notice two motors (1 and 2) are jittering, not spinning properly. If I slide in motor tab then 'sometimes' all spin fine and 'sometime' it jitters but after arming they never spin fine. I tried replacing motors but motors are fine as they spins good in other side. So is my AIO esc fried or some parameter needs to be changed.
Tried flashing firmware, tried updating jesc firmware and other things... not sure if new AIO is already damaged I didn't even get chance to fly once 
Also I should mention few times saw slight smoke coming out from the area of esc...
Here is a video what is happening..

https://drive.google.com/file/d/1slQEMvE...sp=sharing

Are you on a digital esc protocol like dshot?

(29-Jan-2021, 08:01 AM)voodoo614 Wrote: Are you on a digital esc protocol like dshot?

By default it is in dshot600, I tried all other dshots but same thing....

Try swapping the 2 good motors over with the 2 jittering motors to see if those jittering motors continue jittering when connected to the other known good ESC's. If they no longer jitter then the issue is with the original ESCs, otherwise the issue is with those two motors.

So I tried swapping those two motors in doubt to the other side which was working fine...so my earlier M1 and M2 is now connected to ESC4 and ESC3 and M3 and M4 (good ones) to ESC2 and ESC1.
Now apart from M3 which is now connected to ESC2 all three motors jittering... also smoke coming out from all three motors and the board and frame is also hot... could that be due to BLheli/Jesc firmware or flight controller firmware being updated wrong? How do I know which esc firmware to flash?

Something isn't right there. I really don't think that is a firmware issue, but if you want to try re-flashing the BLHeli firmware I guess you have nothing to lose. Just flash the same firmware type that is already on the ESCs. When you read the ESCs using BLHeliSuite it will tell you the firmware type that is currently installed on them.

(30-Jan-2021, 06:59 PM)SnowLeopardFPV Wrote: Something isn't right there. I really don't think that is a firmware issue, but if you want to try re-flashing the BLHeli firmware I guess you have nothing to lose. Just flash the same firmware type that is already on the ESCs. When you read the ESCs using BLHeliSuite it will tell you the firmware type that is currently installed on them.

It says Blheli_S/8Bit.. I used regular blheli to flash to older version to try as suit doesn't allow it to be flashed with that. Tried all older version but same result... so I am concluding I should change the board or the motors or everything.. it is very hard to figure out where exactly   the problem is as every thing behaving very inconsistent..

Unless you have another ESC or some spare motors to try then it will be a case of flipping a coin. I suggest the ESC is probably the most likely culprit, but you won't know until you try a different one. In the worst case if it does turn out to be the motors it would just mean you end up with a spare ESC in your parts drawer, which is always useful to have anyway.