How do you replace the motor?

I had a Protocol Galileo Drone for awhile before Murphy's law finally kicked in and an accident occurred. A gust of wind took it into the branches of a tree. There, it was stuck for a few days and in the meantime their was some light precipitation (snow). However, I was finally able to get it back down. When checking to see if it was okay, I noticed one of the motors was dead. I am assumed this is due to water damage. I want to replace it, but I have not been able to find any instructional videos on how to do this on this specific drone. I emailed Protocol a few weeks ago and never got an answer. If anyone knows how I could go about doing this, that would be very appreciated.