hello guys .. after repeatedly using the "cyanogenmod rom" decided to return to the stock sony .. now I was using the "ultra existenz" and it came the "existenz black" that caught my attention but the truth is that they will have about 3 things to enhance cell or the OS of sony, it's no big deal and therefore miss the updates just for that ... no, I'm not sure the custom rom provide benefits that exceed the stock. what do you say?