This sounds like the easiest achievement ever, but whenever I get to the 'a' button in the sequence, it continues the game as if i'd hit start. the achievement does not unlock. I have tried holding down all different combinations of shoulder buttons while doing the code, I've tried using the left and right joystick to unlock this. NOTHING seems to work. I can assure you I'm at the correct screen (Press Start Screen) but still nothing. I am the kind of guy who wants all achievements so this is driving me up the wall. any help or advice would be appreciated. Gamertag: Benny the Eagle. Thanks (sorry for moaning)
i had the same problem, everytime i entered it i got the start menu. I have since managed to do it and what i did was hold down the Rt trigger button and used the left pad rather than the joystick, member its old school, so use the old style buttons. hope this helps
I had a lot of difficulty getting this to work at first, tried several times and several combinations (RB/RS/RT + code (D-pad, RS, etc). Ultimately what worked for me was holding in the RB while doing the code. There was a slight pause and the achievement popped.