Weavile Lover 42

I attempted to use the following code, but it did not work! Part of my problem may be with the button command; it says to press the L, R, or Start buttons in order to see EV's, IV's, or Stats respectively, but i am unsure when I am supposed to press the buttons for any code! Codes often come with button commands, but I never know when to press them. Can someone please clarify this for me? I have Pokemon White and this is the code to let you see EV's/IV's on Pokemon White- ::View IV/EV in Status (L for EV, R for IV, Start for normal) "537FBEEC E7921005 E380C400 00000078 021D9220 1C38D10D E51F0010 E5900000 E51F1014 E1500001 1A000013 E3A00301 E5900130 E3A010A0 E3100C01 03A01046 E3100C02 03A0100D E51F0040 E5C01DA8 E5C01DFE E2811001 E5C01E5E E2811001 E5C01EBE E2811001 E5C01FDE E2811001 E5C01F1E E2811001 E5C01F7E E7921005 EAFFBE9E E1A00000 037FBEEC EA004145 D0000000 00000000 521D4240 1C286809 E2002000 00000020 E5951058 E3510001 112FFF1E E3100FC2 13A01000 15851058 128EE006 E12FFF1E 021D5244 EEDCF62C D0000000 00000000"