Hi to everyone! I have questions related to MPN models: N9005ZKEXSI N9005ZKEBTU N9005ZWEBTU N9005ZIEITV N9005ZKEITV N9005ZWEITV N9005ZKEPHE N9005ZKEDBT N9005ZWEPHN N9005ZKEPHN I know that they are somehow related to the regions but I don't know exactly how. I have a few questions: 1) What are the differences? 2) Are these hardware or software differences? 3) Once rooted, will these MPN models become all the same? 4) Are the frequencies and basebands the same? Thanks!