Good day @tincdron,
The ESCs are 30A, as seen on their label.
You shouldn't need to do anything with the copter and that shouldn't be happening with the battery you got with it. Seeing that you're having problems with the SO I'll remind you to parametrize it (second part of the post) after you flash the SD card and install the autopilot binary (parameters are the most common breaking point in these cases).
Maybe the battery needs charging? I'd need more details tbh.