Most v10.1 ELF files are "patched" to automatically redirect to OPL after cheats are selected, rather than looking for a physical disc.
Then came the warning.
The for the PlayStation 2 is a legacy utility primarily used for enabling cheat codes and managing save files on original hardware and emulators. Because the software is no longer officially supported, modern users typically obtain the .ELF file from community-maintained archival sites to use with modding tools like Free McBoot (FMCB) and uLaunchELF . Overview of Codebreaker 10.1 codebreaker 101 elf ps2 download verified