THEMA:

Hello,
i bought 6 of HiCOPTER 90A escs for our big esacopter with wookong and Axi motors 5320/18. All was ok.
One day we had a problem and we broke one esc, so I bought other 3 other HiCOPTER 90A.
But When I replaced broken esc the new one had a response totally different from other old escs.
In wookong app with idle at max value motor test not start motors, all other motors start correctly. I tried also to replace other esc with new one and also in this case motor turn very very low with radio command and motor test not work.
All 3 new escs have same problem.
These controllers are pre-set from Jeti so for me it's impossible to modify any settings.
I contacted Jeti and they told me that old models had slightly different settings.
So i sended all escs to Jeti for repalce settings but when i retried problem is the same.
I wrote many mail without any reply.
Do you have any suggest?
Thanks