u/Beschmann

Hi all I plugged my batterie in and didn't realize that the battery cable was plugged the wrong way into the receiver/esc combo.
There was a tiny amount of smoke and it smelled like burned plastic.
After everything thing cooled down I tried again with the cable in the correct position.
I had the same result.
Is there a way to check what is still working or should I get a new one?
Thanks in advance!