Originally posted by xDarkFantasy
Anyway, I tried the MiniVerTech thing, and it doesn't work. It says something like nothing can be found in the slot. I tried it on both.
you need to make sure yourr USB is formatted to FAT32
The folder directory should be: USB\PS3\UPDATE
The PUP file needs to be named as PS3UPDAT.PUP
The PUP file needs to be inside USB\PS3\UPDATE\PS3UPDAT.PUP
With this MinverChk you can definitely know if you can downgrade safely.
Hope that you're at least 3.55
but you can still do it on 3.56 but you need to take a different approach.