I struggled for nearly a day trying to figure out how to root my Galaxy S4...finally figured it out. Now I've spent the better part of a day trying to figure out how to flash a ROM on this machine. I eventually figured out how to flash CWM on it using ROM Manager (the newer versions come in .img files, and Odin doesn't like them). There is the seeming capability using ROM Manager to flash a ROM with it, as well. Has anyone done this? Success, failures? I welcome any and all input, especially if it involves the S4. Thanks, peeps!