Jess Ragan

ive modded 3 cubes with xenos but its been many years :< it's possible i've gone as low as 125. the ones i used had some status led on it also that went solid green or yellow to indicate success. in case it is just the discs use a regular dvd, i had a bunch of minis that were supposed to be a good brand but after the first few i couldn't get a good burn out of them

If you're wanting to load GBI without worrying about the modchip, you can buy a physical memory card that accepts SD. This allows you to load some basic homebrew including the Game Boy Interface software. Only bummer is the company who sells it is based in UK (may or may not be an issue for you), and it takes a few weeks to get it.

https://www.codejunkies.com/Products/SD-Media-Launcher__EF000580V.aspx

Pot adjusts CAN certainly be tricky. Has the unit ever booted DVD-r before? I have 2 modded Gamecubes and a copy of the GBA boot disc as well and it works fine. Make sure the discs you are creating are not the problem.