i have a PS3JB like that, and when i use backupmanager.pkg or ps3 ftp server.pkg.
i installed, after i launch. I have a black screen (ps home not respond).
It's ATmega32u2 chip.
Edit: I think i found something.. I tried on a PS3 Slim and it work. On the first PS3 (40GB CECHG04)
The bluray drive is out. So i think it's that the problem. I would like to use PS3 Ftp server.