How to know if ps3 model is compatible with CFW ?
some PS3 model are downgradable and others not so be carefulall you have to do is to look for the model of ps3 just under it
you can use PS3 Model patch test
Older Models
Downgradable Models
These
easy, trimmed down charts will help you find out if your PS3 is
downgradable and what the lowest firmware that it can be downgraded to.
To see the full chart head over to the PS3dev wiki.
Remember that 3.55 is the firmware required to install CFW, for now.
You can check out the last column to see the min firmware that’s allowed
on that console.
