note 4 firmware

hi all ,,any1 bought a note4 from carphone warehouse ,,?just want to know what is the version of the note 4 first you buy it cz mine when i bought it just flashed a rom on it and now want to go back to stock 5.0.1 if some one in uk and have n910f stock 5.0.1 can tel me the firmware on his phone (i mean if its XXU1BOC5 or not ?)

thanks alll