what you are looking for is a codebreaker.elf that is HDLoader patched (search for it on the net)
what it does is boots to ULE or whatever may be in your boot folder instead of actually booting the game. from there you can boot hdloader, or ESR perhaps. With your codes intact.
Oh, so, I don't need a CodeBreaker disc to do this?
That is correct.
Originally Posted by Xsk9
Best regards: dlanor
If you reread my post, and check the link again. You will find what you are looking for.
Check Post #3 of that link. You would only have to rename it.
Then rename your ESR.ELF to CB_launch.elf and place in your BOOT folder on the memory card.