Can you mix Main and FS files from different firmware revisions? For example, I found W760_R3DA028_FS_ROGERS_RED52 but there is no generic Main avail, only China. Also if I want to debrand, are most people using W760_R3EA037_MAIN_GENERIC_DE_RED52 and W760_R3EA037_FS_RUSSIA_RED52 because they are the latest firmware revisions? I think a Russia FS is okay to use because one of the languages is English. I have many many more questions are this but I think this will get the ball rolling :)