Here for PS2 Slim with wLaunchELF exFat

[VisionR1]

New with mod wLaunchELF (https://github.com/israpps/wLaunchELF_ISR)
All PS2 slims (3.10 + 3.11) - English language.zip
Test it in my PS2 Slim SCPH-77004 and works

For those without MC and need the DVD method (Test it to my PS2 Slim SCPH-77004)
I just replace the inside uLaunchELF with mod wLaunchELF (https://github.com/ps2homebrew/wLaunchELF) with exFat support.
Burn it with the same instructions as provided in front page (i hope works) and the explain, how chance initial program is in the instructions front page

Old
All PS2 slims (3.10 + 3.11) - English language.zip

[usernameflo]

VisionR1, can you also include a LAUNCHELF.CNF where the O button boots mass:/OPL.ELF ? If it autoboots, it's even better .

[VisionR1]

VisionR1, can you also include a LAUNCHELF.CNF where the O button boots mass:/OPL.ELF ? If it autoboots, it's even better .

Unfortunately, I don't know.
I only merge it, I'm not a dev.
But if you have on MC in your PS2 the FreeMcBoot, you can from the setting add the O button to start the OPL.