Speed Passion GT Pro 2.1 EX : weird problem

[stefke]

This weekend I had a weird problem with my SP 2.1EX ESC : a few minutes into a run, the car lost power. It kept running but it felt like all timing had gone : the static timing as well as the boost timing. Suddenly it ran like a stock motor.
I was using a SP 8.5 V3 motor and tried a 7.5 motor with the same result. All connections and solderings were checked but couldn't find any problem. I even changed the receiver with no result so it must be the ESC.

ESC is not warmer then usual compared to my GT Pro 2.0 in my 4wd.

I also tried recalibrating the ESC, flashed the software using the USB program box and tried different versions of the SP software.

Anyone else had this problem with the SP 2.1EX ESC ?