Use cheats from games loaded from pendrive

So im kinda new to using FreeMcboot, my ps2 has always been hardmodded so I never found any use to hack it, until recently that my ps2's reader started failing, so I got a modded memory card to load games from my pendrive, the card came with OPL, Codebreaker,Swapmagic, etc included.

So, since I can only load games from a pendrive now, how do I use cheats? codebreaker gives me a black screen each time I try to use it and Im unfortunately not smart enough to undertand the tutorial on how to...

Use cheats from games loaded from pendrive