Ok,
For Master reset,
follow the path Menu - Settings - Master reset. Enter the default security code that is 000000.
Then you will have the Mass Storage Mode and you can easily carry the drag and drop operations.
Two ways are there. The one is you should go ahead with moto app to do this and the other is you should go ahead with data cable. However, there are plenty of mobile accessories [togofogo.com] available online to get things at the best price.