(adsbygoogle = window.adsbygoogle || []).push({}); is their anyway i can see how far my ps3 firmware will go back and can my model be downgraded model- CECH-2503B

You must login or register to view this content. that'll tell you the lowest you can go.

I wouldn't waste your time downgrading unless you're going to stay offline. CFW PS3s that get online now, will be banned.