European radio on AT&T (snapdragon S4) HOX ?

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http://forum.xda-developers.com – Hi, i have an HTC AT&T (snapdragon S4) One X.I bought it from ebay and unlocked it. I know i shouldn't be on this thread but i wanted to know if i could SAFELY flash an European radio (i live in Greece) from the tegra 3 HOX,and not bricking my AT&T HOX.I am planing on flashing the just the radio.img without the Rils to avoid complications. Can a person who has done this or a DEV answer to me ? Responsibly please, i can't afford bricking it. (HowTos)