I use 1.5 with a Firmware Loader- so i have firmware 2.5 installed on the memorycard, and I boot it from the games menu of firmware 1.5
Result? I can run any game below or equal to os 2.5 AND I can play sonic, mario, Mario 64, Golden Axe.... :)
Play homebrew? Head straight for "Games>Memory card>Whatever"
Play 2.5 games? Head straight for "Games>Memory Card>Firmware Loader" and it boots into the firmware and then the UMD :-D
Note: I'm waiting for the developer to allow 2.7 to boot from the loader- Something about encryption means it wont work :/
Result? I can run any game below or equal to os 2.5 AND I can play sonic, mario, Mario 64, Golden Axe.... :)
Play homebrew? Head straight for "Games>Memory card>Whatever"
Play 2.5 games? Head straight for "Games>Memory Card>Firmware Loader" and it boots into the firmware and then the UMD :-D
Note: I'm waiting for the developer to allow 2.7 to boot from the loader- Something about encryption means it wont work :/