Here is a quick video of what a multi rotor should and shouldn't look like with soldering jobs. Also, I repaired a Devo-M for one of these that was spinning the motors up at different times. The ESc's were calibrated fine and worked perfectly on a test Devo-M. This damaged Devo-M had a motor mixing issue but was still set as X frame in the config. After flashing a good known firmware and loading the param file the damaged Devo-M is now working.
