I just picked up another PS3 to use for Linux. It's an early 80 GB (CECHE01) so I know that it can be downgraded. I can find plenty of tutorials on how to downgrade from 3.55 to 3.41 but then they all say "now you can jailbreak!" But I've got no interest in jailbreaking or custom firmware, I just want to run official firmware 3.15 for OtherOs. So can anyone point me to a tutorial to downgrade from 3.21 or 3.41 to 3.15?
Thanks for the help,
AeroSigma