Can you get it to transfer anything? It worked fine for me. I used the m9 and had it connect to the m7. When you try it again check to see if the mobile hotspot turns on when activating the transfer tool, it has to be on for it to work.
When I used the iCloud transfer for iPhone it didn't work all that well, but it worked. Not only did some of my contacts not transfer over, but it somehow deleted them from my iCloud account.