[Ubefuct]

First I mean no disrespect, but you are typing broken English.(understandable but not clear)
there are plenty of emulators for 3.55 cfw
Spoofers only change listed version number
Dlc & psn content works using reactpsn
Dev_blind does give write access to flash
If your talking about jfw3.56 you said you read that and I'm sorry for misunderstanding perhaps try to rephrase to get better/more accurate help
Edit...... sorry didn't see title ignore the above posted