Does the motor spin freely enough when turned by hand, and do you have another motor to test (even a friends, doesnt matter so long as its BL and wired up to the esc firmly)?

I had the same problem with my Mamba 25. I had to update the firmware and restore the default settings. Now it works like champ! :intello:

tested with other motor and it did same thing.
and i even updated firmware to 1.20 before testing.
now its on its way to castle...