User blog comment:EpicGamerWorld/Borderlands 2: GOLDEN Keys Glitch ( PS3 & XBOX)/@comment-7826012-20130603224921

As of June 3, 2013, the glitch stil works.

Step 5 is not required.

if you have more than 1 Golden Keys, you can use all but one key, then leave the game and come back and then you'll have all your keys back. This really helps so that you aren't only opening the chest once per Steps 1-6.