i was wondering can you still use a android phone or the psp to downgrade a system that was updated to 4.5 ofw
I'm afraid that has never been possible. The only way to downgrade is with the use of a hardware flasher. The android/psp thing was only to exploit the ps3 on 3.41, way back at the start of the ps3 scene.
What is Natepig is trying to say is just plain and simple NO
I was attempting to be a bit more informative than just simply saying no. Thanks for your input though.