Problem copying files from PC to Galaxy S3 (slow or frozen) I have a lot of difficulty copying files to my Galaxy S3. My goal is to sync my music from MediaMonkey to my GS3. When I connect the phone, the computer sees it but the connection is incredibly slow! And it is the same thing if I copy files using Windows Explorer or MediaMonkey. The files start to copy, it takes maybe about 1 minute per song, and at some point it will slow down, then stop to progress and freeze.

I made sure I was using the stock USB cable provided with my device but I also tried 2 other cables with same results. The last thing I tried was to clear the cache partition then reboot. I also tried different USB ports on the PC (USB2 and 3, different controllers).

I'm out of ideas.
You can use Dropbox and other cloud based storage, very useful for moving files.